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Bernd Steltner
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Volkmarsen, DE
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Patents Grants
last 30 patents
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Patent Grant
Magnetic card reader and door knob assembly
Patent number
D405345
Issue date
Feb 9, 1999
Hewi Heinrich Wilke GmbH
Willi Hankel
D08 - Tools and hardware
Information
Patent Grant
Magnetic card reader and door knob assembly
Patent number
D390769
Issue date
Feb 17, 1998
Hewi Heinrich Wilke GmbH
Willi Hankel
D08 - Tools and hardware
Information
Patent Grant
Magnetic card reader and door knob assembly
Patent number
D382790
Issue date
Aug 26, 1997
Hewi Heinrich Wilke GmbH
Willi Hankel
D08 - Tools and hardware