| 发明名称 |
Treatment of tar |
| 摘要 |
|
| 申请公布号 |
US2040101(A) |
申请公布日期 |
1936.05.12 |
| 申请号 |
US19320627658 |
申请日期 |
1932.08.05 |
| 申请人 |
THE BARRETT COMPANY |
发明人 |
MILLER STUART PARMELEE |
| 分类号 |
C10C1/04;C10G19/02 |
主分类号 |
C10C1/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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