Band-pass filter,申请号US19390268268-传众专利搜索

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发明名称	Band-pass filter
摘要
申请公布号	US2240849(A)	申请公布日期	1941.05.06
申请号	US19390268268	申请日期	1939.04.17
申请人	DON LEE BROADCASTING SYSTEM	发明人	LUBCKE HARRY R.
分类号	H01F21/00;H03H5/02;H03H7/01	主分类号	H01F21/00
代理机构		代理人
主权项
地址

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