Volume control and switching device,申请号US19320604596-传众专利搜索

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发明名称	Volume control and switching device
摘要
申请公布号	US2038744(A)	申请公布日期	1936.04.28
申请号	US19320604596	申请日期	1932.04.11
申请人	TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.	发明人	LISSAUER HERBERT
分类号	H03G3/02;H04B1/20	主分类号	H03G3/02
代理机构		代理人
主权项
地址

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