| 发明名称 |
PLASTIC PIPE GRIPPING TOOL |
| 摘要 |
The invention relates to a vice-grip plier having rest surfaces adapted to maintain the pliar in a horizontal plane on the top end of a well casing while holding a plastic pipe, being inserted into the casing, in a vertical plane centered in the casing.
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| 申请公布号 |
US3653284(A) |
申请公布日期 |
1972.04.04 |
| 申请号 |
USD3653284 |
申请日期 |
1970.10.27 |
| 申请人 |
GEORGE O. PYNCHON;JAMES H. HULSE JR. |
发明人 |
GEORGE O. PYNCHON;JAMES H. HULSE JR. |
| 分类号 |
B25B5/12;B25B7/02;B25B7/12;E21B19/12;(IPC1-7):B25B7/02;B25B27/00 |
主分类号 |
B25B5/12 |
| 代理机构 |
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代理人 |
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| 主权项 |
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