Assignee

ZIMMERMAN THOMAS G

US·2 granted patents·392 citations·filing 1990–1991

Technology mixG01S1 G08B1 G09B1 G10H1 H03K1

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2 records

0195US5287789AMusic training apparatusZIMMERMAN THOMAS G·Filed 1991·Granted Feb 22, 1994·112 cites·40 claims
0295US5103085APhotoelectric proximity detector and switchZIMMERMAN THOMAS G·Filed 1990·Granted Apr 7, 1992·280 cites·28 claims

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