PIEZO-ELECTRIC DEVICE,申请号CAD418636-传众专利搜索

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发明名称	PIEZO-ELECTRIC DEVICE
摘要
申请公布号	CA418636(A)	申请公布日期	1944.02.22
申请号	CAD418636	申请日期
申请人	WILLEM HENDRIK STIGTER	发明人	WILLEM HENDRIK STIGTER
分类号		主分类号
代理机构		代理人
主权项
地址

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