Piezoelectric cyrstal as a frequency discriminator,申请号US19490082892-传众专利搜索

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法人/股东/高管

发明名称	Piezoelectric cyrstal as a frequency discriminator
摘要
申请公布号	US2686871(A)	申请公布日期	1954.08.17
申请号	US19490082892	申请日期	1949.03.22
申请人	REICHES SOL L	发明人	REICHES SOL L.
分类号	H03D3/16	主分类号	H03D3/16
代理机构		代理人
主权项
地址

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