PRIVATE TELEPHONE EXCHANGE SYSTEM WITHOUT BUTTON NOR INDICATOR,申请号JP19810072870-传众专利搜索

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发明名称	PRIVATE TELEPHONE EXCHANGE SYSTEM WITHOUT BUTTON NOR INDICATOR
摘要
申请公布号	JPS5718192(A)	申请公布日期	1982.01.29
申请号	JP19810072870	申请日期	1981.05.12
申请人	MITEL CORP	发明人	PATORITSUKU AARU BAAN
分类号	H04Q3/58;H04M9/00	主分类号	H04Q3/58
代理机构		代理人
主权项
地址

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