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发明名称
CALIBRATION BLOCK FOR VERIFICATION OF REFRACTED LONGITUDINAL ULTRASONIC TRANSDUCER
摘要
申请公布号
KR101041942(B1)
申请公布日期
2011.06.15
申请号
KR20090090114
申请日期
2009.09.23
申请人
发明人
分类号
G01N29/30;G01N29/24
主分类号
G01N29/30
代理机构
代理人
主权项
地址
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