| 发明名称 |
FRICTION-DRIVEN ROTARY CLEANING APPARATUS WITH COAXIAL TRANSMISSION |
| 摘要 |
This disclosure depicts floor and ground cleaning apparatus having a cylindrical brush which is friction driven from a pair of wheels through novel transmission means coaxial with the brush and the wheels.
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| 申请公布号 |
US3691581(A) |
申请公布日期 |
1972.09.19 |
| 申请号 |
USD3691581 |
申请日期 |
1971.04.19 |
| 申请人 |
JOHN H. COULT |
发明人 |
JOHN H. COULT |
| 分类号 |
A47L11/22;(IPC1-7):A47L11/22 |
主分类号 |
A47L11/22 |
| 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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