| 发明名称 |
Perforated abrasive disc |
| 摘要 |
|
| 申请公布号 |
US3121298(A) |
申请公布日期 |
1964.02.18 |
| 申请号 |
US19630268102 |
申请日期 |
1963.03.26 |
| 申请人 |
ABRASIVE PRODUCTS, INC. |
发明人 |
MELLON JOSEPH T. |
| 分类号 |
B24D11/00;B24D13/14 |
主分类号 |
B24D11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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