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发明名称
ULTRASONIC PROBE
摘要
<p>A piezoelectric transducer having a small-diameter probe (1) whose tip face (5) has a concavity to improve cavitation.</p>
申请公布号
WO1990014170(A1)
申请公布日期
1990.11.29
申请号
US1990002575
申请日期
1990.05.11
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
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