| 发明名称 |
Tapered boom hose |
| 摘要 |
<p>The inlet end of the boom hose (20) is coupled to the outer end of a concrete delivery pipe (18). The inner diameter of an outlet end, from which concrete flows, is made smaller than the inner diameter of the inlet end.</p> |
| 申请公布号 |
EP1411184(A1) |
申请公布日期 |
2004.04.21 |
| 申请号 |
EP20030250112 |
申请日期 |
2003.01.08 |
| 申请人 |
CONSTRUCTION FORMS, INC. |
发明人 |
LEHNHARDT, GARY D.;ALTAMIRANO, ROLANDO |
| 分类号 |
E04G21/04;(IPC1-7):E04G21/04 |
主分类号 |
E04G21/04 |
| 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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