Dot-and-dash telegraph receiver,申请号US19440568107-传众专利搜索

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发明名称	Dot-and-dash telegraph receiver
摘要
申请公布号	US2397909(A)	申请公布日期	1946.04.09
申请号	US19440568107	申请日期	1944.12.14
申请人	INTERNATIONAL BUSINESS MACHINES CORPORATION	发明人	AMBROSIO BIAGIO F.
分类号	H04L15/34	主分类号	H04L15/34
代理机构		代理人
主权项
地址

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