Method and apparatus for increasing the sharpness of tuning,申请号US19350048319-传众专利搜索

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发明名称	Method and apparatus for increasing the sharpness of tuning
摘要
申请公布号	US2173851(A)	申请公布日期	1939.09.26
申请号	US19350048319	申请日期	1935.11.05
申请人	AUGUST MEININGHAUS BERNHARD	发明人	MEININGHAUS BERNHARD AUGUST
分类号	H03H7/01	主分类号	H03H7/01
代理机构		代理人
主权项
地址

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