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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|