Variable selectivity means,申请号US19350038702-传众专利搜索

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发明名称	Variable selectivity means
摘要
申请公布号	US2145561(A)	申请公布日期	1939.01.31
申请号	US19350038702	申请日期	1935.08.31
申请人	PILOT RADIO CORPORATION	发明人	TOTH EMERICK;COOPER WILLIAM H.
分类号	H03G5/26	主分类号	H03G5/26
代理机构		代理人
主权项
地址

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