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Perfex Corp

Perfex Cor
Active Patents
0
Total Holdings
4

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2410055A Snap switch Expired / Lapsed 1944-07-28 1946-10-29 0 Details
US2370205A Burner control apparatus Expired / Lapsed 1941-08-22 1945-02-27 0 Details
US2353740A Control apparatus Expired / Lapsed 1942-01-19 1944-07-18 0 Details
US2315533A Control device Expired / Lapsed 1940-03-02 1943-04-06 0 Details