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发明名称
(U1 Y2) ;RESONADOR PIEZOELECTRICO, PROTEGIDO CONTRA HUMEDAD
摘要
申请公布号
ES1009970(U1)
申请公布日期
1989.11.16
申请号
ES19890001212
申请日期
1989.04.18
申请人
发明人
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主分类号
代理机构
代理人
主权项
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