| 发明名称 |
PUNCHING DEVICE FOR PUNCHING A TH ROUGH HOLE BETWEEN A SET OF NEIGHBOURING HOLES PUNCHED ON A WORKPIECE |
| 摘要 |
PURPOSE:To punch a through hole between a set of neighbouring holes punched on a workpiece by using a drill element that operates on hydraulic pressure. |
| 申请公布号 |
JPS51148891(A) |
申请公布日期 |
1976.12.21 |
| 申请号 |
JP19740107336 |
申请日期 |
1974.09.17 |
| 申请人 |
CHIKUMA SEISAKUSHIYO KK |
发明人 |
AKAGAKI HARUYOSHI |
| 分类号 |
B23Q5/32;B23B39/10;B23B39/16;B23Q5/06 |
主分类号 |
B23Q5/32 |
| 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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