| 发明名称 |
SORPTION PUMPING DEVICE |
| 摘要 |
<p>A sorption pumping device characterized in that a space to be evacuated can be connected to the sorption material successively at at least two different levels of the device.</p> |
| 申请公布号 |
CA1009997(A) |
申请公布日期 |
1977.05.10 |
| 申请号 |
CA19740190799 |
申请日期 |
1974.01.23 |
| 申请人 |
N.V. PHILIPS'GLOEILAMPENFABRIEKEN |
发明人 |
VISSER, JAN |
| 分类号 |
B01D53/04;F04B37/02;H01J41/12 |
主分类号 |
B01D53/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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