Assignee
GRAWI ROBERT S
3 granted patents·19 citations·filing 1982–1986
Top patents by PatentIndex Score
3 records- 0137US4481856AStringed instrument for attachment to an electronic transducerGRAWI ROBERT S·Filed 1982·Granted Nov 13, 1984·9 cites·4 claims
- 0227US4646876AWalking ladderGRAWI ROBERT S·Filed 1986·Granted Mar 3, 1987·6 cites·7 claims
- 0326US4637290AVariable pitch harpGRAWI ROBERT S·Filed 1985·Granted Jan 20, 1987·4 cites·10 claims
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