Assignee
SUMNER MANUFACTURING CO INC
US·4 granted patents·130 citations·filing 1990–1999
Top patents by PatentIndex Score
4 records- 0182US5297779AJack mechanism having safety protection for workersSUMNER MANUFACTURING CO INC·Filed 1993·Granted Mar 29, 1994·47 cites·17 claims
- 0263US5806868AManual cart for loading, transporting and unloading long or heavy objectsSUMNER MANUFACTURING CO INC·Filed 1996·Granted Sep 15, 1998·48 cites·16 claims
- 0347US5078364ACarriage lock mechanism for portable cable hoistSUMNER MANUFACTURING CO INC·Filed 1990·Granted Jan 7, 1992·28 cites·16 claims
- 0431US6076724APipe clamp having cable connected clamp membersSUMNER MANUFACTURING CO INC·Filed 1999·Granted Jun 20, 2000·7 cites·18 claims
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