Patent US 5028838A
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| Patent number | US 5028838A |
|---|---|
| Title | Grid assemblies for use in cathode ray tubes |
| Inventors | Dennis D. Askew, Donald C. Bomberger, Conrad Odenthal |
| Company | Tektronix Inc |
| Filing date | 1989-08-31 |
| Grant date | 1991-07-02 |
| Cites |