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Charbonnages de France CDF

Charbonnag

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3315263A	Remote-control device	Expired / Lapsed	1963-11-15	1967-04-18	2	Details
US3287636A	Method and apparatus including condenser means for measurin…	Expired / Lapsed	1963-07-19	1966-11-22	2	Details
US3183443A	Transmission system with antenna means for coupling to an i…	Expired / Lapsed	1962-09-11	1965-05-11	2	Details
US3132300A	Portable transistorized transceiver apparatus	Expired / Lapsed	1961-08-07	1964-05-05	2	Details