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发明名称
摘要
申请公布号	DE2158683(B2)	申请公布日期	1980.10.02
申请号	DE19712158683	申请日期	1971.11.26
申请人	INTERNATIONAL BUSINESS MACHINES CORP., ARMONK, N.Y. (V.ST.A.)	发明人	CLOSS, FELIX HUGO;MUELLER, HANS RUDOLF;WILD, DANIEL
分类号	H04J3/06;H04J3/24;H04Q11/04;(IPC1-7):H04Q11/04;H04L11/00	主分类号	H04J3/06
代理机构		代理人
主权项
地址

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