Piezoelektrischer Kristall,申请号DE1925I026485D-传众专利搜索

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发明名称	Piezoelektrischer Kristall
摘要
申请公布号	DE509162(C)	申请公布日期	1930.10.06
申请号	DE1925I026485D	申请日期	1925.07.26
申请人	INTERNATIONAL WESTERN ELECTRIC COMPANY, INC.	发明人
分类号	H03H9/17;H03H9/19	主分类号	H03H9/17
代理机构		代理人
主权项
地址

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