Assignee

DEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG

DE·5 granted patents·56 citations·filing 1975–1987

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5 records

0183USD244469SDesk telephone station with built-in freespeaking deviceDEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG·Filed 1976·Granted May 24, 1977·17 cites·1 claims
0280USD242928STelephone handsetDEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG·Filed 1975·Granted Jan 4, 1977·17 cites·1 claims
0361USD244468SDesk telephone station with built-in freespeaking device and an additional casing for a sound transmitter and/or receiverDEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG·Filed 1976·Granted May 24, 1977·7 cites·1 claims
0456USD243961STelephone instrumentDEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG·Filed 1975·Granted Apr 5, 1977·7 cites·1 claims
0550USD299343STelephone communication terminal setDEUTSCHE TELEPHONWERKE UND KABELINDUSTRIE AG·Filed 1987·Granted Jan 10, 1989·8 cites·1 claims

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