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发明名称
TESTER VALVE
摘要
申请公布号
AU552713(B2)
申请公布日期
1986.06.19
申请号
AU19830012634
申请日期
1983.03.21
申请人
HALLIBURTON CO.
发明人
HAROLD KENT BECK
分类号
E21B34/00;E21B34/10;E21B49/00;E21B49/08;(IPC1-7):E21B34/10;F16K31/12
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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