KEY TELEPHONE SYSTEM,申请号JP19890208219-传众专利搜索

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发明名称	KEY TELEPHONE SYSTEM
摘要
申请公布号	JPH0370352(A)	申请公布日期	1991.03.26
申请号	JP19890208219	申请日期	1989.08.10
申请人	NEC CORP	发明人	TOYOSHIMA FUMIYOSHI
分类号	H04M3/50;H04M3/533;H04Q3/58	主分类号	H04M3/50
代理机构		代理人
主权项
地址

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