Call signal and motor control box for simplex printers,申请号US19290383235-传众专利搜索

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发明名称	Call signal and motor control box for simplex printers
摘要
申请公布号	US1834910(A)	申请公布日期	1931.12.01
申请号	US19290383235	申请日期	1929.08.03
申请人	THE WESTERN UNION TELEGRAPH COMPANY	发明人	BLANTON WILLIAM B.
分类号	H04L12/12	主分类号	H04L12/12
代理机构		代理人
主权项
地址

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