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发明名称
OIL PRODUCTION BY STEAM DRIVE
摘要
申请公布号
US3425492(A)
申请公布日期
1969.02.04
申请号
USD3425492
申请日期
1966.01.10
申请人
PHILLIPS PETROLEUM CO.
发明人
RALPH E. GILCHRIST
分类号
E21B43/16;E21B43/24;(IPC1-7):E21B43/24;E21B43/20
主分类号
E21B43/16
代理机构
代理人
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