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COMMUNICATIONS PATENTS Inc

COMMUNICAT
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2007809A Thermionic switching system Expired / Lapsed 1930-10-04 1935-07-09 0 Details
US1956397A Multiple channel transmission control Expired / Lapsed 1931-02-21 1934-04-24 0 Details
US1945952A Radio range finder Expired / Lapsed 1930-11-08 1934-02-06 0 Details