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发明名称
摘要
申请公布号	FR2300372(B1)	申请公布日期	1980.04.30
申请号	FR19750040395	申请日期	1975.12.29
申请人	IBM	发明人
分类号	H04J3/00;H04B7/15;H04B7/185;H04B7/212;H04J3/17;H04Q11/00;H04Q11/04;(IPC1-7):G06F13/00;G06F3/04	主分类号	H04J3/00
代理机构		代理人
主权项
地址

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