CLOSED AREA CONNECTING DEVICE,申请号JP19870234887-传众专利搜索

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发明名称	CLOSED AREA CONNECTING DEVICE
摘要
申请公布号	JPS6478569(A)	申请公布日期	1989.03.24
申请号	JP19870234887	申请日期	1987.09.21
申请人	NEC CORP	发明人	ONAKI KATSUMI
分类号	H04M3/42	主分类号	H04M3/42
代理机构		代理人
主权项
地址

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