| 发明名称 |
Etching machine |
| 摘要 |
|
| 申请公布号 |
US2288128(A) |
申请公布日期 |
1942.06.30 |
| 申请号 |
US19410403814 |
申请日期 |
1941.07.24 |
| 申请人 |
ALBERT ERZ RAYMOND |
发明人 |
ERZ RAYMOND ALBERT |
| 分类号 |
B44C1/22;C23F1/08 |
主分类号 |
B44C1/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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