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FR DES TELECOMM SOC

FR DES TEL
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2606285A Double heterodyne radio receiver Expired / Lapsed 1946-10-18 1952-08-05 0 Details
US2550519A Radio transmitter-receiver station with automatic frequency… Expired / Lapsed 1947-08-02 1951-04-24 0 Details