| 发明名称 |
JOINTS FOR FLEXIBLE DUCTING |
| 摘要 |
A joint is made between two lengths of flexible ventilation ducting by tightening around a seam on an end of one length of ducting an endless ring of flexible strand located in a seam on the adjacent end of another length.
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| 申请公布号 |
US3705736(A) |
申请公布日期 |
1972.12.12 |
| 申请号 |
USD3705736 |
申请日期 |
1971.03.03 |
| 申请人 |
DOWTY MECO LTD. |
发明人 |
GORDON BERTRAM DAWSON |
| 分类号 |
F16L21/00;F16L31/00;(IPC1-7):F16L31/00 |
主分类号 |
F16L21/00 |
| 代理机构 |
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代理人 |
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| 地址 |
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