G3/G4 SWITCHING DEVICE FOR ISDN COMMUNICATION TERMINAL,申请号JP19910281786-传众专利搜索

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发明名称	G3/G4 SWITCHING DEVICE FOR ISDN COMMUNICATION TERMINAL
摘要
申请公布号	JPH05122493(A)	申请公布日期	1993.05.18
申请号	JP19910281786	申请日期	1991.10.29
申请人	RICOH CO LTD	发明人	FUJII TAKANORI
分类号	H04L29/06;H04N1/00;H04N1/32	主分类号	H04L29/06
代理机构		代理人
主权项
地址

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