| 发明名称 |
Sonic tube for concrete piles, is sealed at lower end with cork integrated with dry mixture of concrete derivative |
| 摘要 |
<p>A cork integrated with dry mixture of concrete derivative seals the lower end of a sonic tube. The cork length or nominal diameter is variable with respect to the tube.</p> |
| 申请公布号 |
ES2245170(A1) |
申请公布日期 |
2005.12.16 |
| 申请号 |
ES20030000845 |
申请日期 |
2003.04.09 |
| 申请人 |
PILOTES Y CIMENTACIONES, S.L. |
发明人 |
HERMIDA ROMERO JULIO |
| 分类号 |
E02D5/34;(IPC1-7):E02D5/34 |
主分类号 |
E02D5/34 |
| 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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