Signaling system and apparatus,申请号US19360065702-传众专利搜索

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发明名称	Signaling system and apparatus
摘要
申请公布号	US2193811(A)	申请公布日期	1940.03.19
申请号	US19360065702	申请日期	1936.02.25
申请人	THE WESTERN UNION TELEGRAPH COMPANY	发明人	BLANCHARD ROLLA F.;BLANTON WILLIAM B.;BROWNE HARRY L.
分类号	H04L12/54;H04L12/62	主分类号	H04L12/54
代理机构		代理人
主权项
地址

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