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FRANK D HAYES

FRANK D HA
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2119811A Resilient induction magnet Expired / Lapsed 1935-08-20 1938-06-07 0 Details
US2003534A Motor operated door control Expired / Lapsed 1932-05-25 1935-06-04 0 Details