Assignee
PRODUCTION RESEARCH INC
US·2 granted patents·108 citations·filing 1977–1992
Top patents by PatentIndex Score
2 records- 0185US4130966AVentilator hatch assemblyPRODUCTION RESEARCH INC·Filed 1977·Granted Dec 26, 1978·53 cites·20 claims
- 0284US5166611ATone wheel with coined serrations for engaging an annular support surface and method of assembling same on a wheel bearing sealPRODUCTION RESEARCH INC·Filed 1992·Granted Nov 24, 1992·55 cites·14 claims
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