| 发明名称 |
Well delivery pipe comprises at least two pipe segments whose outer surfaces are roughened by sand blasting or a similar process and/or are coated with a compound consisting of sand and bonding agents |
| 摘要 |
<p>The well delivery pipe comprises at least two pipe segments whose outer surfaces are roughened by sand blasting or a similar mechanical process and/or are coated with a compound consisting of sand and bonding agents.</p> |
| 申请公布号 |
DE20305353(U1) |
申请公布日期 |
2004.08.05 |
| 申请号 |
DE2003205353U |
申请日期 |
2003.04.02 |
| 申请人 |
STUEWA KONRAD STUEKERJUERGEN GMBH |
发明人 |
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| 分类号 |
E03B3/16;F16L15/04;F16L21/035;(IPC1-7):E03B3/16 |
主分类号 |
E03B3/16 |
| 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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