Method to diminish damping of crystals,申请号US19400333209-传众专利搜索

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发明名称	Method to diminish damping of crystals
摘要
申请公布号	US2268823(A)	申请公布日期	1942.01.06
申请号	US19400333209	申请日期	1940.05.03
申请人	TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M. B. H.	发明人	HERZOG WERNER
分类号	H03H3/02	主分类号	H03H3/02
代理机构		代理人
主权项
地址

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