发明名称 STARTING SYSTEM FOR PRESSSTOOTALK FROM PUSHHBUTTON DIAL TELEPHONE SET
摘要 PURPOSE:To economize a PB dial telephone set by making the starting of a transmitter possible with the control signal obtained through the combinationed use of its oscillation circuit.
申请公布号 JPS53117304(A) 申请公布日期 1978.10.13
申请号 JP19770032615 申请日期 1977.03.23
申请人 MITSUBISHI ELECTRIC CORP 发明人 YAMAMOTO TAKAMASA
分类号 H04M1/50;(IPC1-7):04M1/50 主分类号 H04M1/50
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