| 发明名称 |
APARATO PARA LA EXCAVACION DE AGUJEROS Y TRINCHERAS DE PRO-FUNDIDAD CONSIDERABLE. |
| 摘要 |
<p>This disclosure relates to an apparatus for the excavation of deep holes and trenches, which comprises a grab bucket whose jaws are carried by a rigid rotatable support bar and are connected by a pair of arms to a sleeve member which is screwed onto a threaded end portion of said support bar.</p> |
| 申请公布号 |
ES370671(A1) |
申请公布日期 |
1971.11.01 |
| 申请号 |
ES19710003706 |
申请日期 |
1969.07.23 |
| 申请人 |
COSTRUZIONI CEMENTO COMPRESSO FONDISA, S. P. A. |
发明人 |
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| 分类号 |
B66C3/14;E02F3/413;E02F3/47;(IPC1-7):02F/ |
主分类号 |
B66C3/14 |
| 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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