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Automatic Electric Laboratories Inc

Automatic
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2498899A Electrical signaling system Expired / Lapsed 1945-08-27 1950-02-28 0 Details
US2412258A Telephone or like system Expired / Lapsed 1943-12-08 1946-12-10 0 Details
US2391389A Telephone system Expired / Lapsed 1944-08-04 1945-12-25 0 Details