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发明名称
Method and apparatus for cleaning wells by means of ultrasound
摘要
申请公布号
EP0733779(A3)
申请公布日期
1997.10.22
申请号
EP19960101406
申请日期
1996.02.01
申请人
PATZNER, NORBERT, DIPL.-ING., DIPL.-WIRTSCH.-ING.
发明人
PATZNER, NORBERT, DIPL.-ING., DIPL.-WIRTSCH.-ING.
分类号
B06B1/08;E21B28/00;E21B37/08;(IPC1-7):E21B37/08;E03B3/15
主分类号
B06B1/08
代理机构
代理人
主权项
地址
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