TELEPHONE EXCHANGE APPARATUS,申请号EP19910402794-传众专利搜索

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发明名称	TELEPHONE EXCHANGE APPARATUS
摘要
申请公布号	EP0482989(A3)	申请公布日期	1993.06.16
申请号	EP19910402794	申请日期	1991.10.21
申请人	CANON KABUSHIKI KAISHA	发明人	OTSUKA, KUNIAKI
分类号	H04M3/42;H04M3/424;H04M3/44;H04M3/54;H04Q3/62;(IPC1-7):H04M3/42	主分类号	H04M3/42
代理机构		代理人
主权项
地址

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