Patent US 4899091A: Difference between revisions
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(Created page with "{{Patent |Office=US |Number=4899091A |Title=Cathode-ray-tube astigmatism correction apparatus |Inventors=Conrad Odenthal |Company=Tektronix Inc |Filing date=1985-03-05 |Grant...") |
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Revision as of 13:50, 25 August 2021
| Patent number | US 4899091A (click link for details and documents via Google Patents) |
|---|---|
| Title | Cathode-ray-tube astigmatism correction apparatus |
| Inventors | Conrad Odenthal |
| Company | Tektronix Inc |
| Filing date | 1985-03-05 |
| Grant date | 1990-02-06 |