- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 31/52 - Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output having grid-like image screen through which the electron ray or beam passes and by which the ray or beam is influenced before striking the luminescent output screen, i.e. having "triode action"
Patent holdings for IPC class H01J 31/52
Total number of patents in this class: 1
10-year publication summary
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Principal owners for this class
| Owner |
All patents
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This class
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|---|---|---|
| Closed Joint-Stock Company Infrasystems | 1 |
1 |
| Other owners | 0 |