CHANGING-OVER CONTROL SYSTEM FOR TRUNK CIRCUIT CONTROL CIRCUIT,申请号JP19880284207-传众专利搜索

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发明名称	CHANGING-OVER CONTROL SYSTEM FOR TRUNK CIRCUIT CONTROL CIRCUIT
摘要
申请公布号	JPH02130060(A)	申请公布日期	1990.05.18
申请号	JP19880284207	申请日期	1988.11.10
申请人	NEC CORP	发明人	YABUUCHI KATSUMI
分类号	H04M3/22;H04B1/74	主分类号	H04M3/22
代理机构		代理人
主权项
地址

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