EXTENSION NUMBER CHECKER FOR PRIVATE BRANCH EXCHANGE,申请号JP19860194540-传众专利搜索

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发明名称	EXTENSION NUMBER CHECKER FOR PRIVATE BRANCH EXCHANGE
摘要
申请公布号	JPS6350243(A)	申请公布日期	1988.03.03
申请号	JP19860194540	申请日期	1986.08.20
申请人	NEC ENG LTD	发明人	YAMADA YUICHI
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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