INTER-STATION TALKIE GUIDE SERVICE SYSTEM,申请号JP19910013145-传众专利搜索

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发明名称	INTER-STATION TALKIE GUIDE SERVICE SYSTEM
摘要
申请公布号	JPH04247754(A)	申请公布日期	1992.09.03
申请号	JP19910013145	申请日期	1991.02.04
申请人	NEC ENG LTD	发明人	NONAKA ISAMU
分类号	H04M3/50;H04Q3/58	主分类号	H04M3/50
代理机构		代理人
主权项
地址

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