Piezoelectric crystal mounting,申请号US19440564418-传众专利搜索

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发明名称	Piezoelectric crystal mounting
摘要
申请公布号	US2434903(A)	申请公布日期	1948.01.27
申请号	US19440564418	申请日期	1944.11.21
申请人	FEDERAL TELEPHONE AND RADIO CORPORATION	发明人	BOKOVOY SAMUEL A.;HAWK HENRY W. N.
分类号	H03H9/09	主分类号	H03H9/09
代理机构		代理人
主权项
地址

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