Assignee
SEIWA KAGAKU KK
3 granted patents·137 citations·filing 1981–1983
Top patents by PatentIndex Score
3 records- 0188US4494707AApparatus for winding and unwinding an elongated flexible memberSEIWA KAGAKU KK·Filed 1983·Granted Jan 22, 1985·48 cites·14 claims
- 0280US4390054AApparatus for opening and closing a flexible screen in a greenhouse or the likeSEIWA KAGAKU KK·Filed 1981·Granted Jun 28, 1983·42 cites·4 claims
- 0375US4348833AOpening and closing a flexible screen in a greenhouse or the likeSEIWA KAGAKU KK·Filed 1981·Granted Sep 14, 1982·47 cites·10 claims
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