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A W CHESTERTON COMPANY A MA CORP

A W CHESTE
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4576384B1 US4576384B1 - - Google Patents Expired / Lapsed 1985-01-03 1992-06-30 0 Details
US4576384A Split mechanical face seal Expired / Lapsed 1985-01-03 1986-03-18 20 Details