| 发明名称 |
Excavating tool having hard-facing elements |
| 摘要 |
An excavating tool having hard-faced elements supported in the material engaging surface thereof, the elements having generally planar faces disposed at an angle to the ground engaging surface.
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| 申请公布号 |
US4187626(A) |
申请公布日期 |
1980.02.12 |
| 申请号 |
US19780881724 |
申请日期 |
1978.02.27 |
| 申请人 |
ESCO CORP |
发明人 |
GREER, DONALD J;MACEWAN, JOHN D JR |
| 分类号 |
E02F9/28;(IPC1-7):E02F9/28 |
主分类号 |
E02F9/28 |
| 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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