Combined radioreceiver and electrical phonograph,申请号US19290376880-传众专利搜索

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发明名称	Combined radioreceiver and electrical phonograph
摘要
申请公布号	US1897557(A)	申请公布日期	1933.02.14
申请号	US19290376880	申请日期	1929.07.09
申请人	THE STROMBERGCARLSON TELEPHONE MANUFACTURING COMPANY	发明人	GRAHAM VIRGIL M.
分类号	H04B1/20	主分类号	H04B1/20
代理机构		代理人
主权项
地址

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