Telegraph signaling system,申请号US19320636869-传众专利搜索

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发明名称	Telegraph signaling system
摘要
申请公布号	US1953273(A)	申请公布日期	1934.04.03
申请号	US19320636869	申请日期	1932.10.08
申请人	POSTAL TELEGRAPH-CABLE COMPANY	发明人	STANLEY WILLIAM G.
分类号	H04L5/16;H04L25/04	主分类号	H04L5/16
代理机构		代理人
主权项
地址

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