| 发明名称 |
ARCTIC CONSTRUCTION AND DRILLING |
| 摘要 |
A method for constructing a working base in a permafrost area wherein the working base is located in bodies of water meeting certain requirements. A method for constructing a working base in a body of water and the working base itself.
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| 申请公布号 |
US3675430(A) |
申请公布日期 |
1972.07.11 |
| 申请号 |
USD3675430 |
申请日期 |
1970.02.05 |
| 申请人 |
ATLANTIC RICHFIELD CO. |
发明人 |
NORMAN E. HAIMILA |
| 分类号 |
E02D17/18;E21B7/00;(IPC1-7):E02D21/00;E02D27/36 |
主分类号 |
E02D17/18 |
| 代理机构 |
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代理人 |
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