Multiple-neck filter,申请号US19500172746-传众专利搜索

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发明名称	Multiple-neck filter
摘要
申请公布号	US2662217(A)	申请公布日期	1953.12.08
申请号	US19500172746	申请日期	1950.07.08
申请人	RADIO CORPORATION OF AMERICA	发明人	ROBERTS WALTER VAN B.
分类号	H03H9/50	主分类号	H03H9/50
代理机构		代理人
主权项
地址

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