PRIVATE BRANCH EXCHANGE SYSTEM,申请号JP19900311043-传众专利搜索

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发明名称	PRIVATE BRANCH EXCHANGE SYSTEM
摘要
申请公布号	JPH04181893(A)	申请公布日期	1992.06.29
申请号	JP19900311043	申请日期	1990.11.16
申请人	TOSHIBA CORP	发明人	YABU KOICHIRO
分类号	H04Q3/58	主分类号	H04Q3/58
代理机构		代理人
主权项
地址

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