High speed radiotelegraphic receiving apparatus,申请号US19270202826-传众专利搜索

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发明名称	High speed radiotelegraphic receiving apparatus
摘要
申请公布号	US1813908(A)	申请公布日期	1931.07.14
申请号	US19270202826	申请日期	1927.07.01
申请人	JOSEPH BETHENOD	发明人	BETHENOD JOSEPH
分类号	H04L25/05	主分类号	H04L25/05
代理机构		代理人
主权项
地址

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