| 发明名称 |
Vacuum lift apparatus with a control valve assembly |
| 摘要 |
A lift truck attachment for lifting heavy loads through use of negative air pressure characterized by a novel valve structure responsive to load engagement for opening the negative air pressure line.
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| 申请公布号 |
US3923177(A) |
申请公布日期 |
1975.12.02 |
| 申请号 |
US19730372393 |
申请日期 |
1973.06.21 |
| 申请人 |
LITTLE GIANT PRODUCTS, INC. |
发明人 |
HORTON, EARL A. |
| 分类号 |
B66F9/18;(IPC1-7):B65G47/00 |
主分类号 |
B66F9/18 |
| 代理机构 |
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代理人 |
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