Assignee
ZELM WILLEM D VAN
3 granted patents·166 citations·filing 1979–1985
Top patents by PatentIndex Score
3 records- 0180US4374600ALock-type gripping device for handicapped personsZELM WILLEM D VAN·Filed 1980·Granted Feb 22, 1983·73 cites·6 claims
- 0278US4613179AHand-held gripping device with improved support for handicapped persons having limited finger function or wrist strengthZELM WILLEM D VAN·Filed 1985·Granted Sep 23, 1986·67 cites·19 claims
- 0345US4231603AGripping device for handicapped personsZELM WILLEM D VAN·Filed 1979·Granted Nov 4, 1980·26 cites·9 claims
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