Printing-telegraph system,申请号US19280323159-传众专利搜索

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发明名称	Printing-telegraph system
摘要
申请公布号	US1791587(A)	申请公布日期	1931.02.10
申请号	US19280323159	申请日期	1928.12.01
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	VERNAM GILBERT S.
分类号	H04L12/40	主分类号	H04L12/40
代理机构		代理人
主权项
地址

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