| 发明名称 |
Unidirectional gripping open end wrench |
| 摘要 |
An open end ratchet wrench having an arcuate cavity to receive a D-shaped member. The D-shaped member being movable between inner and outer ends of the cavity to either ratchet around a nut or bolt or to apply a tightening force.
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| 申请公布号 |
US4158975(A) |
申请公布日期 |
1979.06.26 |
| 申请号 |
US19770825702 |
申请日期 |
1977.08.18 |
| 申请人 |
DESOUSA, EGAS J J |
发明人 |
DESOUSA, EGAS J J |
| 分类号 |
B25B13/46;(IPC1-7):B25B13/12 |
主分类号 |
B25B13/46 |
| 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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