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发明名称
Apparatus and method for cleaning filtering gravel packs in water wells.
摘要
申请公布号
EP0431507(B1)
申请公布日期
1995.04.05
申请号
EP19900123067
申请日期
1990.12.02
申请人
BAUER, REINHOLD, DIPL.-ING.
发明人
BAUER, REINHOLD, DIPL.-ING.
分类号
E21B33/124;E21B37/08;(IPC1-7):E21B37/08;E03B3/15
主分类号
E21B33/124
代理机构
代理人
主权项
地址
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