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William S. Stumpf
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Waterloo, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Chair armrest component
Patent number
D411929
Issue date
Jul 13, 1999
Northfield Metal Products Ltd.
William S. Stumpf
D06 - Furnishings
Information
Patent Grant
Chair armrest
Patent number
D411396
Issue date
Jun 22, 1999
Northfield Metal Products Ltd.
William S. Stumpf
D06 - Furnishings
Information
Patent Grant
Chair armrest
Patent number
D407246
Issue date
Mar 30, 1999
Northfield Metal Products Ltd.
William S. Stumpf
D06 - Furnishings
Information
Patent Grant
Chair arm rest
Patent number
D397889
Issue date
Sep 8, 1998
Northfield Metal Products Ltd.
William S. Stumpf
D06 - Furnishings