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ANDREW LE ROY CHIPMAN

ANDREW LE
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1883562A Sound film and method of making same Expired / Lapsed 1928-11-05 1932-10-18 0 Details
US1832097A Talking motion picture film and method of making same Expired / Lapsed 1928-07-09 1931-11-17 0 Details