AUTOMATIC RING-OFF UNIT FOR TELEPHONE SWITCHING DEVICE,申请号SU19853840375-传众专利搜索

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发明名称	AUTOMATIC RING-OFF UNIT FOR TELEPHONE SWITCHING DEVICE
摘要
申请公布号	SU1298949(A1)	申请公布日期	1987.03.23
申请号	SU19853840375	申请日期	1985.01.08
申请人	BIK ROMAN SH,SU;OLESHCHUK YURIJ M,SU;TYURIKOV SERGEJ L,SU	发明人	BIK ROMAN SH,SU;OLESHCHUK YURIJ M,SU;TYURIKOV SERGEJ L,SU
分类号	H04M3/22	主分类号	H04M3/22
代理机构		代理人
主权项
地址

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