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TELEPHONE ANSWERING AND RECORD

TELEPHONE

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2800530A	Telephone answering and recording devices	Expired / Lapsed	1952-01-09	1957-07-23	0	Details
US2799726A	Telephone answering and recording devices	Expired / Lapsed	1953-11-18	1957-07-16	0	Details
US2743315A	Control circuits for telephone answering and recording devi…	Expired / Lapsed	1952-10-23	1956-04-24	0	Details
US2724015A	Telephone answering and recording device	Expired / Lapsed	1950-05-27	1955-11-15	0	Details
US2374842A	Recording and reproducing apparatus	Expired / Lapsed	1943-07-10	1945-05-01	0	Details