Perfectionnements aux filtres à quartz en pont à bande passante élargie, en particulier pour ondes courtes,申请号FRD899032-传众专利搜索

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发明名称	Perfectionnements aux filtres à quartz en pont à bande passante élargie, en particulier pour ondes courtes
摘要
申请公布号	FR899032(A)	申请公布日期	1945.05.15
申请号	FRD899032	申请日期	1943.10.21
申请人	TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M. B. H.	发明人
分类号	H03H9/54	主分类号	H03H9/54
代理机构		代理人
主权项
地址

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