SUBSCRIBER CIRCUIT RING TRIP CIRCUIT,申请号JP19890312869-传众专利搜索

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发明名称	SUBSCRIBER CIRCUIT RING TRIP CIRCUIT
摘要
申请公布号	JPH03173254(A)	申请公布日期	1991.07.26
申请号	JP19890312869	申请日期	1989.12.01
申请人	FUJITSU LTD	发明人	HASEGAWA KENZO;YOSHIDA KAZUHIRO
分类号	H04M3/02;H04Q1/30	主分类号	H04M3/02
代理机构		代理人
主权项
地址

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