| 发明名称 |
Abrasive |
| 摘要 |
|
| 申请公布号 |
US2319792(A) |
申请公布日期 |
1943.05.25 |
| 申请号 |
US19420452090 |
申请日期 |
1942.07.23 |
| 申请人 |
NORTON COMPANY |
发明人 |
JR. LORING COES, |
| 分类号 |
B24D3/28 |
主分类号 |
B24D3/28 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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