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HARRY F LANGLOIS

HARRY F LA
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2321226A Automatic variable speed transmission mechanism Expired / Lapsed 1941-07-19 1943-06-08 0 Details
US2147194A Rotary vacuum pump Expired / Lapsed 1935-12-02 1939-02-14 0 Details