| 发明名称 |
Internal abrasive device |
| 摘要 |
|
| 申请公布号 |
US2434801(A) |
申请公布日期 |
1948.01.20 |
| 申请号 |
US19460678112 |
申请日期 |
1946.06.20 |
| 申请人 |
VINCO CORPORATION |
发明人 |
HUTTO MARSDEN C. |
| 分类号 |
B24B33/04;H02P3/24 |
主分类号 |
B24B33/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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