TREA

LaCrosse Technology, Ltd.

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  • La Cresent, MN, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 12,309,040
    • Issue date May 20, 2025
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Grant

    User-configurable weather warning apparatus
    • Patent number 12,159,525
    • Issue date Dec 3, 2024
    • La Crosse Technology Ltd.
    • Allan McCormick
    • G08 - SIGNALLING
  • Information Patent Grant

    Central monitoring and measurement system
    • Patent number 12,014,624
    • Issue date Jun 18, 2024
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 11,782,583
    • Issue date Oct 10, 2023
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    User-configurable weather warning apparatus
    • Patent number 11,741,826
    • Issue date Aug 29, 2023
    • La Crosse Technology Ltd.
    • Allan McCormick
    • G08 - SIGNALLING
  • Information Patent Grant

    User-configurable weather warning apparatus
    • Patent number 11,443,614
    • Issue date Sep 13, 2022
    • La Crosse Technology Ltd.
    • Allan McCormick
    • G08 - SIGNALLING
  • Information Patent Grant

    Central monitoring and measurement system
    • Patent number 11,436,917
    • Issue date Sep 6, 2022
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 11,379,101
    • Issue date Jul 5, 2022
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 11,363,107
    • Issue date Jun 14, 2022
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Grant

    Humidity monitoring and adjustment system
    • Patent number 11,112,133
    • Issue date Sep 7, 2021
    • La Crosse Technology Ltd.
    • Axel Dostmann
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 11,029,825
    • Issue date Jun 8, 2021
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 11,005,953
    • Issue date May 11, 2021
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    User-configurable weather warning apparatus
    • Patent number 10,861,319
    • Issue date Dec 8, 2020
    • La Crosse Technology Ltd.
    • Allan McCormick
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Central monitoring and measurement system
    • Patent number 10,657,803
    • Issue date May 19, 2020
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Remote location monitoring
    • Patent number 10,599,303
    • Issue date Mar 24, 2020
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 10,591,641
    • Issue date Mar 17, 2020
    • La Crosse Technology Ltd.
    • Haupt Rolf
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 10,591,642
    • Issue date Mar 17, 2020
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 10,594,807
    • Issue date Mar 17, 2020
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 10,539,713
    • Issue date Jan 21, 2020
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 10,237,358
    • Issue date Mar 19, 2019
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 10,234,597
    • Issue date Mar 19, 2019
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    User-configurable weather warning apparatus
    • Patent number 10,204,507
    • Issue date Feb 12, 2019
    • La Crosse Technology, Ltd.
    • Allan McCormick
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 10,146,410
    • Issue date Dec 4, 2018
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 10,145,987
    • Issue date Dec 4, 2018
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Location monitoring via a gateway
    • Patent number 10,120,105
    • Issue date Nov 6, 2018
    • La Crosse Technology Ltd.
    • Rolf Haupt
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Humidity monitoring and adjustment system
    • Patent number 9,709,291
    • Issue date Jul 18, 2017
    • La Crosse Technology, Ltd.
    • Axel Dostmann
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Remote location monitoring
    • Patent number 9,528,861
    • Issue date Dec 27, 2016
    • La Crosse Technology
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Remote location monitoring
    • Patent number 9,140,583
    • Issue date Sep 22, 2015
    • La Crosse Technology, Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Display screen with icon
    • Patent number D737320
    • Issue date Aug 25, 2015
    • La Crosse Technology, Ltd.
    • Allan McCormick
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Portion of a clock
    • Patent number D724959
    • Issue date Mar 24, 2015
    • La Crosse Technology, Ltd.
    • Allan McCormick
    • D10 - Measuring, testing, or signalling instruments

Patents Applicationslast 30 patents

  • Information Patent Application

    User-Configurable Weather Warning Apparatus
    • Publication number 20250157317
    • Publication date May 15, 2025
    • LA CROSSE TECHNOLOGY LTD.
    • Allan McCormick
    • G01 - MEASURING TESTING
  • Information Patent Application

    Central Monitoring and Measurement System
    • Publication number 20240386791
    • Publication date Nov 21, 2024
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20240045575
    • Publication date Feb 8, 2024
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    User-Configurable Weather Warning Apparatus
    • Publication number 20230419817
    • Publication date Dec 28, 2023
    • LA CROSSE TECHNOLOGY LTD.
    • Allan McCormick
    • G08 - SIGNALLING
  • Information Patent Application

    User-Configurable Weather Warning Apparatus
    • Publication number 20220366776
    • Publication date Nov 17, 2022
    • LA CROSSE TECHNOLOGY LTD.
    • Allan McCormick
    • G08 - SIGNALLING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20220326824
    • Publication date Oct 13, 2022
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Location Monitoring via a Gateway
    • Publication number 20220329665
    • Publication date Oct 13, 2022
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Application

    Humidity Monitoring and Adjustment System
    • Publication number 20220034533
    • Publication date Feb 3, 2022
    • LA CROSSE TECHNOLOGY LTD.
    • Axel Dostmann
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    LOCATION MONITORING VIA A GATEWAY
    • Publication number 20210400118
    • Publication date Dec 23, 2021
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G08 - SIGNALLING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20210397312
    • Publication date Dec 23, 2021
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    User-Configurable Weather Warning Apparatus
    • Publication number 20210049897
    • Publication date Feb 18, 2021
    • LA CROSSE TECHNOLOGY LTD.
    • Allan McCormick
    • G01 - MEASURING TESTING
  • Information Patent Application

    Location Monitoring via a Gateway
    • Publication number 20200351359
    • Publication date Nov 5, 2020
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20200319764
    • Publication date Oct 8, 2020
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Central Monitoring and Measurement System
    • Publication number 20200234568
    • Publication date Jul 23, 2020
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20190278441
    • Publication date Sep 12, 2019
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Location Monitoring via a Gateway
    • Publication number 20190158608
    • Publication date May 23, 2019
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Location Monitoring via a Gateway
    • Publication number 20190154876
    • Publication date May 23, 2019
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    User-Configurable Weather Warning Apparatus
    • Publication number 20190122536
    • Publication date Apr 25, 2019
    • LA CROSSE TECHNOLOGY LTD.
    • Allan McCormick
    • G01 - MEASURING TESTING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20190064391
    • Publication date Feb 28, 2019
    • LA CROSSE TECHNOLOGY LTD.
    • Haupt Rolf
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOCATION MONITORING VIA A GATEWAY
    • Publication number 20190041547
    • Publication date Feb 7, 2019
    • LA CROSSE TECHNOLOGY LTD.
    • Haupt Rolf
    • G01 - MEASURING TESTING
  • Information Patent Application

    Location Monitoring via a Gateway
    • Publication number 20180128941
    • Publication date May 10, 2018
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    Humidity Monitoring and Adjustment System
    • Publication number 20180073757
    • Publication date Mar 15, 2018
    • La Crosse Technology, Ltd.
    • Axel Dostmann
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    Location Monitoring via a Gateway
    • Publication number 20170099357
    • Publication date Apr 6, 2017
    • La Crosse Technology, Ltd.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    REMOTE LOCATION MONITORING
    • Publication number 20170059743
    • Publication date Mar 2, 2017
    • La Crosse Technology, Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20160048280
    • Publication date Feb 18, 2016
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    LOCATION MONITORING VIA A GATEWAY
    • Publication number 20150364027
    • Publication date Dec 17, 2015
    • La Crosse Technology, Ltd.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    Central Monitoring and Measurement System
    • Publication number 20140015688
    • Publication date Jan 16, 2014
    • La Crosse Technology, Ltd.
    • Rolf Haupt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20140009306
    • Publication date Jan 9, 2014
    • LA CROSSE TECHNOLOGY LTD.
    • Rolf Haupt
    • G01 - MEASURING TESTING
  • Information Patent Application

    Humidity Monitoring And Adjustment System
    • Publication number 20130233933
    • Publication date Sep 12, 2013
    • La Crosse Technology, Ltd.
    • Axel Dostmann
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    Remote Location Monitoring
    • Publication number 20120188080
    • Publication date Jul 26, 2012
    • La Crosse Technology, Ltd.
    • Rolf Haupt
    • G06 - COMPUTING CALCULATING COUNTING

Trademarklast 30 trademarks

  • Information Trademark

    98899887 - LA CROSSE VIEW BRIDGE
    • Serial number 98899887
    • Filing date Dec 12, 2024
    • La Crosse Technology, Ltd.
    • 7 - Machines and machine tools
  • Information Trademark

    98899382 - LA CROSSE VIEW BRIDGE
    • Serial number 98899382
    • Filing date Dec 12, 2024
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    98873900 - LA CROSSE VIEW ALERTS
    • Serial number 98873900
    • Filing date Nov 26, 2024
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    98873859 - LA CROSSE VIEW ALERTS
    • Serial number 98873859
    • Filing date Nov 26, 2024
    • La Crosse Technology, Ltd.
    • 7 - Machines and machine tools
  • Information Trademark

    97203404 - GLIDE
    • Serial number 97203404
    • Registration number 7146847
    • Filing date Jan 5, 2022
    • La Crosse Technology Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    97203357 - CYCLONE
    • Serial number 97203357
    • Registration number 6998265
    • Filing date Jan 5, 2022
    • La Crosse Technology Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    88402595 - NIGHT VISION TECHNOLOGY
    • Serial number 88402595
    • Registration number 5902538
    • Filing date Apr 25, 2019
    • La Crosse Technology, Ltd.
    • 14 - Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes
  • Information Trademark

    88100699 - LA CROSSE CLOCK CO.
    • Serial number 88100699
    • Registration number 5797877
    • Filing date Aug 31, 2018
    • La Crosse Technology, Ltd.
    • 14 - Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes
  • Information Trademark

    87961498 - DATA STREAM TECHNOLOGY
    • Serial number 87961498
    • Filing date Jun 14, 2018
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    87666480 - EQUITY
    • Serial number 87666480
    • Registration number 5604690
    • Filing date Oct 31, 2017
    • LA CROSSE MCCORMICK, LLC
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    87662922 - LACROSSE VIEW
    • Serial number 87662922
    • Filing date Oct 27, 2017
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    87662936 - LACROSSE TECHNOLOGY VIEW
    • Serial number 87662936
    • Filing date Oct 27, 2017
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    87268805 - LA CROSSE TECHNOLOGY VIEW
    • Serial number 87268805
    • Filing date Dec 14, 2016
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    87126376 - WEATHER DIRECT
    • Serial number 87126376
    • Registration number 5745922
    • Filing date Aug 3, 2016
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    87126372 - WEATHERCAST
    • Serial number 87126372
    • Filing date Aug 3, 2016
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    86735372 - LA CROSSE VISION
    • Serial number 86735372
    • Filing date Aug 24, 2015
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    86735363 - LA CROSSE VIEW
    • Serial number 86735363
    • Registration number 5324347
    • Filing date Aug 24, 2015
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    86701242 - WEATHER DIRECT PAST, PRESENT, AND FUTURE
    • Serial number 86701242
    • Registration number 5142579
    • Filing date Jul 22, 2015
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    86701238 - LA CROSSE ALERTS PAST, PRESENT, AND FUTURE
    • Serial number 86701238
    • Filing date Jul 22, 2015
    • La Crosse Technology, Ltd.
    • 42 - Scientific and technological services and research and design relating thereto
  • Information Trademark

    86701232 - LA CROSSE ALERTS PAST, PRESENT, AND FUTURE
    • Serial number 86701232
    • Filing date Jul 22, 2015
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    86030115 - ULTRATOMIC
    • Serial number 86030115
    • Registration number 4978398
    • Filing date Aug 6, 2013
    • La Crosse Technology, Ltd.
    • 14 - Precious metals and their alloys and goods in precious metals or coated therewith, not included in other classes
  • Information Trademark

    85835217 - QUADFLIGHT
    • Serial number 85835217
    • Filing date Jan 29, 2013
    • La Crosse Technology, Ltd.
    • 28 - Games and playthings
  • Information Trademark

    85531873 - LA CROSSE ALERTS
    • Serial number 85531873
    • Registration number 4556361
    • Filing date Feb 2, 2012
    • La Crosse Technology, Ltd.
    • 38 - Telecommunications
  • Information Trademark

    85531870 - LA CROSSE ALERTS
    • Serial number 85531870
    • Registration number 4552171
    • Filing date Feb 2, 2012
    • La Crosse Technology, Ltd.
    • 38 - Telecommunications
  • Information Trademark

    85526803 - LA CROSSE ALERTS
    • Serial number 85526803
    • Registration number 4526215
    • Filing date Jan 27, 2012
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    85526830 - LA CROSSE ALERTS
    • Serial number 85526830
    • Registration number 4526216
    • Filing date Jan 27, 2012
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    85526835 - LA CROSSE ALERTS
    • Serial number 85526835
    • Registration number 4483308
    • Filing date Jan 27, 2012
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    85526291 - LA CROSSE ALERTS
    • Serial number 85526291
    • Registration number 4394645
    • Filing date Jan 26, 2012
    • La Crosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    77917972 - INNOVATIVE HOME PRODUCTS
    • Serial number 77917972
    • Registration number 3980053
    • Filing date Jan 22, 2010
    • La Crosse Technology, Ltd.
    • 35 - Advertising
  • Information Trademark

    77657293 - HOME DATA DIRECT
    • Serial number 77657293
    • Registration number 3966753
    • Filing date Jan 27, 2009
    • LaCrosse Technology, Ltd.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments