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发明名称
UNIT FOR FUNCTIONING AN UNATTENDED TELEPHONE
摘要
PURPOSE:To eliminate, by adapting simple and low price arrangements, the fault of convetional unit, in which office wire is switched on during checking operation, and light the call signal indication element without necessitating exclusive parts.
申请公布号
JPS51112105(A)
申请公布日期
1976.10.04
申请号
JP19750037533
申请日期
1975.03.27
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
OGITA KUNIO
分类号
H04B3/20;G11B31/00;H04M1/64
主分类号
H04B3/20
代理机构
代理人
主权项
地址
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