PRIVATE BRANCH EXCHANGE SYSTEM,申请号JP19900057341-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	JPH03258154(A)	申请公布日期	1991.11.18
申请号	JP19900057341	申请日期	1990.03.08
申请人	TOSHIBA CORP	发明人	HASEGAWA IWAO
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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