Means for converting the frequency of electric oscillations,申请号US19300435982-传众专利搜索

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发明名称	Means for converting the frequency of electric oscillations
摘要
申请公布号	US1934574(A)	申请公布日期	1933.11.07
申请号	US19300435982	申请日期	1930.03.14
申请人	TELEFONAKTIEBOLAGET L. M. ERIESSON	发明人	VOS MAURITZ
分类号	H03B19/10	主分类号	H03B19/10
代理机构		代理人
主权项
地址

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