Printing telegraph system,申请号US19370178016-传众专利搜索

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发明名称	Printing telegraph system
摘要
申请公布号	US2172060(A)	申请公布日期	1939.09.05
申请号	US19370178016	申请日期	1937.12.04
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	FITCH CLYDE J.
分类号	H04L17/22	主分类号	H04L17/22
代理机构		代理人
主权项
地址

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