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发明名称
FILL VALVE
摘要
申请公布号
EP0752047(B1)
申请公布日期
2000.12.27
申请号
EP19950913881
申请日期
1995.03.15
申请人
WEATHERFORD/LAMB, INC.
发明人
BUDDE, PETER
分类号
E21B21/10;(IPC1-7):E21B21/10
主分类号
E21B21/10
代理机构
代理人
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地址
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