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Ulrich Brueggemann
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Heustreu, DE
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last 30 patents
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Patent Grant
Capacitive angle sensor
Patent number
6,449,853
Issue date
Sep 17, 2002
Preh-Werke GmbH & Co. KG
Ulrich Brueggemann
G01 - MEASURING TESTING
Information
Patent Grant
Electrical rotary switch
Patent number
6,180,901
Issue date
Jan 30, 2001
Preh-Werke GmbH & Co. KG
Karl-Heinz Bauer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control unit for switching and controlling household appliances
Patent number
5,995,877
Issue date
Nov 30, 1999
Preh-Werke GmbH & Co. KG
Ulrich Brueggemann
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Electrical rotary switch
Patent number
5,959,269
Issue date
Sep 28, 1999
Preh-Werke GmbH & Co. KG
Karl-Heinz Bauer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrical rotary potentiometer
Patent number
5,952,912
Issue date
Sep 14, 1999
Preh-Werke GmbH & Co., KG
Karl-Heinz Bauer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Reading apparatus for chip cards having reduced contact friction
Patent number
5,894,121
Issue date
Apr 13, 1999
Preh-Werke GmbH & Co. KG
Ulrich Brueggemann
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optoelectronic component with central hollow
Patent number
5,825,051
Issue date
Oct 20, 1998
Preh-Werke GmbH & Co. KG
Karl-Heinz Bauer
H01 - BASIC ELECTRIC ELEMENTS