Party line station signaling system,申请号US19500163002-传众专利搜索

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发明名称	Party line station signaling system
摘要
申请公布号	US2604545(A)	申请公布日期	1952.07.22
申请号	US19500163002	申请日期	1950.05.19
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	INGLIS ALFRED H.;KREBS LUTHER E.
分类号	H04Q5/08	主分类号	H04Q5/08
代理机构		代理人
主权项
地址

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