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经营范围
发明名称
Piezoelectric transducer
摘要
申请公布号
GB2230159(B)
申请公布日期
1993.10.27
申请号
GB19900006801
申请日期
1990.03.27
申请人
* MITSUBISHI MINING & CEMENT CO LTD
发明人
HARUMI * KANAI;YOSHIAKI * TANAKA;KAZUYASU * HIKITA
分类号
G01N29/24;A61B8/00;B06B1/06;H04R17/00;(IPC1-7):H04R17/00
主分类号
G01N29/24
代理机构
代理人
主权项
地址
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