Phase-correcting low-pass electric wave filters,申请号GB19390012691-传众专利搜索

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发明名称	Phase-correcting low-pass electric wave filters
摘要
申请公布号	GB528133(A)	申请公布日期	1940.10.23
申请号	GB19390012691	申请日期	1939.04.27
申请人	HAZELTINE CORPORATION	发明人
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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