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发明名称
Fluid-packed drill pipe
摘要
申请公布号
US3265091(A)
申请公布日期
1966.08.09
申请号
US19620243088
申请日期
1962.12.07
申请人
DE JARNETT FRANK D
发明人
JARNETT FRANK D. DE
分类号
E21B17/00;E21B17/04
主分类号
E21B17/00
代理机构
代理人
主权项
地址
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