| 发明名称 |
Pumps and filter assemblies |
| 摘要 |
A combined pump and filter assembly having backwashing apparatus for the filter assembly and apparatus for offsetting the tendency for an increase in pump output flow resistance.
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| 申请公布号 |
US2003099553(A1) |
申请公布日期 |
2003.05.29 |
| 申请号 |
US20030337098 |
申请日期 |
2003.01.06 |
| 申请人 |
HOSFORD JAMES PETER |
发明人 |
HOSFORD JAMES PETER |
| 分类号 |
A01K63/04;B01D29/11;B01D35/26;(IPC1-7):F04B39/00 |
主分类号 |
A01K63/04 |
| 代理机构 |
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