| 发明名称 |
PORTABLE DRILLING RIG COMPOUND |
| 摘要 |
<p>PORTABLE DRILLING RIG COMPOUND. A portable drilling rig which may be disassembled into subcomponent packages small enough to be transported to the site by helicopter and quickly reassembled utilizes unique chain drive units, compound arrangement and drawworks assembly. 1a</p> |
| 申请公布号 |
CA1048485(A) |
申请公布日期 |
1979.02.13 |
| 申请号 |
CA19750232680 |
申请日期 |
1975.08.01 |
| 申请人 |
DRESSER INDUSTRIES, INC. |
发明人 |
EDDY, KENNETH H.;MCGILL, KENNETH H. |
| 分类号 |
B66D1/20;E21B7/02;E21B19/00;(IPC1-7):21B7/00 |
主分类号 |
B66D1/20 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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