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经营范围
发明名称
ULTRASONIC TRANSDUCER
摘要
申请公布号
EP0843952(B1)
申请公布日期
2012.05.02
申请号
EP19970926428
申请日期
1997.05.09
申请人
CREST ULTRASONICS CORP.
发明人
GOODSON, J., MICHAEL
分类号
H04R17/00;H04R17/10;B06B1/06
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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