| 发明名称 |
MINE SUPPORT |
| 摘要 |
<p>A mine support prop which consists of an elongate timber load supporting member which carries a plurality of circumferentially spaced grooves which extend over a portion of its length adjacent one of its ends with the grooves preferably being angled relatively to the prop axis.</p> |
| 申请公布号 |
CA1202191(A) |
申请公布日期 |
1986.03.25 |
| 申请号 |
CA19830441142 |
申请日期 |
1983.11.15 |
| 申请人 |
H L & H TIMBER PRODUCTS (PROPRIETARY) LIMITED |
发明人 |
CONRADIE, JOHAN A.;DENGLER, ERROL B. |
| 分类号 |
E21D15/02;E21D15/50;(IPC1-7):E21D15/02 |
主分类号 |
E21D15/02 |
| 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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