HYBRIDLESS SIGNAL TRANSFER CIRCUITS,申请号USD3540049-传众专利搜索

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发明名称	HYBRIDLESS SIGNAL TRANSFER CIRCUITS
摘要
申请公布号	US3540049(A)	申请公布日期	1970.11.10
申请号	USD3540049	申请日期	1967.10.26
申请人	BELL TELEPHONE LAB. INC.	发明人	WILMER B. GAUNT JR.
分类号	H04B1/58;(IPC1-7):H04B3/20	主分类号	H04B1/58
代理机构		代理人
主权项
地址

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