| 发明名称 |
Center tubes for filters |
| 摘要 |
|
| 申请公布号 |
US2843269(A) |
申请公布日期 |
1958.07.15 |
| 申请号 |
US19550508491 |
申请日期 |
1955.05.16 |
| 申请人 |
PUROLATOR PRODUCTS, INC. |
发明人 |
DUDINEC EMERY |
| 分类号 |
B01D29/11;B21C37/15 |
主分类号 |
B01D29/11 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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