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发明名称
摘要
申请公布号	FR2419625(B1)	申请公布日期	1982.05.14
申请号	FR19780006400	申请日期	1978.03.07
申请人	LABO CENTRAL TELECOMMUNICATIONS	发明人
分类号	H02H9/04;H04M1/74;H04M3/18;(IPC1-7):H04M1/74	主分类号	H02H9/04
代理机构		代理人
主权项
地址

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