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Karl WIEDEMANN
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Welden, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Sewer cleaning device
Patent number
10,640,966
Issue date
May 5, 2020
Karl Wiedemann
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vehicle for cleaning sewers
Patent number
10,526,778
Issue date
Jan 7, 2020
Karl Wiedemann
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Clearing device for clearing dirt removal container of sewer and st...
Patent number
10,150,619
Issue date
Dec 11, 2018
Karl Wiedemann
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Sewer cleaning device and/or street cleaning device
Patent number
10,118,768
Issue date
Nov 6, 2018
Karl Wiedemann
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Device for cleaning and/or inspection of a flow channel
Patent number
10,105,738
Issue date
Oct 23, 2018
Karl Wiedemann
B08 - CLEANING
Information
Patent Grant
Vehicle for clearing material from drains and the like
Patent number
4,446,591
Issue date
May 8, 1984
Karl Wiedemann
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Sewer cleaning vehicle
Patent number
4,443,908
Issue date
Apr 24, 1984
Karl Wiedemann
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Apparatus for sucking up and holding sludge
Patent number
4,377,475
Issue date
Mar 22, 1983
Karl Wiedemann
E03 - WATER SUPPLY SEWERAGE
Patents Applications
last 30 patents
Information
Patent Application
SEWER CLEANING DEVICE AND/OR STREET CLEANING DEVICE
Publication number
20180178986
Publication date
Jun 28, 2018
Karl Wiedemann
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
SEWER CLEANING DEVICE
Publication number
20170342700
Publication date
Nov 30, 2017
Karl Wiedemann
B60 - VEHICLES IN GENERAL
Information
Patent Application
VEHICLE FOR CLEANING SEWERS
Publication number
20170342699
Publication date
Nov 30, 2017
Karl Wiedemann
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
CLEARING DEVICE FOR CLEARING DIRT REMOVAL CONTAINER OF SEWER AND ST...
Publication number
20160311624
Publication date
Oct 27, 2016
Karl Wiedemann
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
Device for Cleaning and/or Inspection of a Flow Channel
Publication number
20160067751
Publication date
Mar 10, 2016
Karl WIEDEMANN
B08 - CLEANING