| 发明名称 |
FABRICATING METHOD OF COLLET |
| 摘要 |
PURPOSE:To make a notched groove with a simple facility by a method of passing a wire through the through-hole provided to a collet and lapping the hole along the ridge line of pyramid thereby making the groove. |
| 申请公布号 |
JPS53145471(A) |
申请公布日期 |
1978.12.18 |
| 申请号 |
JP19770059384 |
申请日期 |
1977.05.24 |
| 申请人 |
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发明人 |
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| 分类号 |
B24B19/00;B24B19/02;B24B37/00;H01L21/52;H01L21/58;H01L21/677;H01L21/68 |
主分类号 |
B24B19/00 |
| 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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