发明名称 |
Filter |
摘要 |
|
申请公布号 |
US2228129(A) |
申请公布日期 |
1941.01.07 |
申请号 |
US19390263875 |
申请日期 |
1939.03.24 |
申请人 |
STEPHANO BROTHERS |
发明人 |
STEPHANO CONSTANTINE S. |
分类号 |
B01D46/26 |
主分类号 |
B01D46/26 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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