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发明名称	COMMUNICATION SYSTEM WITH ALTERNATE DATA LINK
摘要
申请公布号	US3420958(A)	申请公布日期	1969.01.07
申请号	USD3420958	申请日期	1964.12.29
申请人	BELL TELEPHONE LAB. INC.	发明人	JAMES C. EWIN
分类号	H04Q3/00;(IPC1-7):H04M3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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