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1965-11-17
Multiple channel radio telephone system
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1973-04-24
Radiotelephone system with central office having individual processors assignable to respective mobile units aboard communicating vehicles
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1983-06-01
Aparato de telefono sin hilo con su caja de empalme.
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Control system of a radio telephone apparatus
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1952-06-03
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Mobile telephone system
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1928-10-23
Telephone signaling system
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1970-03-25
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1972-12-26
Automatic mobile radio telephone system
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1982-08-09
Prosjektil-utskytningsanordning
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1974-05-08
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1951-04-11
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1966-11-29
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1960-10-05
Improvements in and relating to radio signalling systems
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1969-03-18
Speech immunity voice frequency signalling systems
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1953-06-09
Mobile radio telephone system
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1957-06-19
Party line identification system
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1961-10-03
Multiple station intercommunication system
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Anlage zur drahtlosen uebertragung von telefongespraechen mit einer die anzahl der teilnehmerstationen unterschreitenden anzahl von funkkanaelen.