H01J 19/68
Specified gas introduced into the tube at low pressure
Official title: Specified gas introduced into the tube at low pressure, e.g. for reducing or influencing space charge
H01J19/68 (Specified gas introduced into the tube at low pressure) appears on 1 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 1
- Published applications
- 0
- Assignees
- 1
- Inventors
- 1
- Latest grant
- 19 Apr 1977
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| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
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