Piezoelectric filter transformer,申请号US19580774563-传众专利搜索

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发明名称	Piezoelectric filter transformer
摘要
申请公布号	US2943278(A)	申请公布日期	1960.06.28
申请号	US19580774563	申请日期	1958.11.17
申请人	MATTIAT OSKAR E	发明人	MATTIAT OSKAR E.
分类号	H01L41/107;H03H9/00;H03H9/54;H03H9/56	主分类号	H01L41/107
代理机构		代理人
主权项
地址

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