| 发明名称 |
Pipe cleaning device |
| 摘要 |
A pipe cleaning device comprises a central body and articulated scraper elements. The articulated shape of the scraper elements serves to enhance the cleaning performance of the device.
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| 申请公布号 |
US5903946(A) |
申请公布日期 |
1999.05.18 |
| 申请号 |
US19970000591 |
申请日期 |
1997.12.30 |
| 申请人 |
SHELL OIL COMPANY |
发明人 |
COLLINS, PETER JOHN;COX, VYVIAN ANTHONY |
| 分类号 |
B08B9/04;B08B9/057;(IPC1-7):B08B9/04 |
主分类号 |
B08B9/04 |
| 代理机构 |
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