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Shield for pressure relief device
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Patent number 5,937,893
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Issue date Aug 17, 1999
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Qualitrol Corporation
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Joshua J. Herz
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Rapid pressure rise circuit
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Patent number 4,823,224
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Issue date Apr 18, 1989
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Qualitrol Corporation
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Richard E. Hagerman
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Snap over lens assembly
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Patent number 4,717,882
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Issue date Jan 5, 1988
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Qualitrol Corporation
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David L. Billings
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G01 - MEASURING TESTING
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Pressure relief device
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Patent number 4,676,266
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Issue date Jun 30, 1987
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Qualitrol Corporation
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Wendell D. Johnson
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Electronic temperature monitor
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Patent number D287701
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Issue date Jan 13, 1987
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Qualitrol Corporation
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Joseph F. Foster
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D10 - Measuring, testing, or signalling instruments
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Pressure relief device
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Patent number 4,431,023
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Issue date Feb 14, 1984
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Qualitrol Corporation
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Wendell D. Johnson
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Hot spot thermometer
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Patent number 4,092,864
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Issue date Jun 6, 1978
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Qualitrol Corporation
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Robert F. Romanowski
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G01 - MEASURING TESTING
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Pressure relief valve operation signal
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Patent number 4,074,696
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Issue date Feb 21, 1978
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Qualitrol Corporation
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Robert F. Romanowski
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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97174268 - SMARTSUB
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Serial number 97174268
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Registration number 6995067
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Filing date Dec 15, 2021
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Qualitrol Company LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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88190720 - QUALCONNEX
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Serial number 88190720
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Registration number 5922477
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Filing date Nov 12, 2018
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Qualitrol Company LLC
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42 - Scientific and technological services and research and design relating thereto
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88023677 - QUALITROL
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Serial number 88023677
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Registration number 5761159
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Filing date Jul 2, 2018
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Qualitrol Company LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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86012683 - OFFSHORE XTREME
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Serial number 86012683
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Filing date Jul 17, 2013
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Qualitrol Company LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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85827051 - QUALITROL
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Serial number 85827051
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Registration number 4566285
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Filing date Jan 18, 2013
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QUALITROL COMPANY LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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85652687 - KIHLSTROM
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Serial number 85652687
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Filing date Jun 15, 2012
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Qualitrol Company LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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85648384 - AKM
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Serial number 85648384
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Registration number 4731867
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Filing date Jun 11, 2012
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Qualitrol Company LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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85307248 - OTIWTI
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Serial number 85307248
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Registration number 4137132
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Filing date Apr 28, 2011
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Qualitrol Company LLC
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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78302345 - QUALITROL
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Serial number 78302345
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Registration number 2966397
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Filing date Sep 18, 2003
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QUALITROL CORPORATION
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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75144176 - TESTON
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Serial number 75144176
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Registration number 2091063
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Filing date Aug 2, 1996
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QUALITROL CORPORATION
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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74512706 - SENTRY
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Serial number 74512706
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Registration number 1946082
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Filing date Apr 15, 1994
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QUALITROL CORPORATION
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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72337830 - QUALITHERM
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Serial number 72337830
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Registration number 901500
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Filing date Sep 12, 1969
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Qualitrol Corporation
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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72160660 - QUALITROL
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Serial number 72160660
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Registration number 757754
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Filing date Jan 14, 1963
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Qualitrol Corporation
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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72160391 - QUALITROL
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Serial number 72160391
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Registration number 760331
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Filing date Jan 8, 1963
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Qualitrol Corporation
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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71489485 - QUALIGAGE
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Serial number 71489485
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Registration number 421549
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Filing date Oct 5, 1945
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QUALITROL CORPORATION
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments