Patent US 3281618A
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| Patent number | US 3281618A |
|---|---|
| Title | Graticule lighting structure |
| Inventors | Lloyd E Swedlund |
| Company | Tektronix Inc |
| Filing date | 1963-11-01 |
| Grant date | 1966-10-25 |
| Cites |
| Patent number | US 3281618A |
|---|---|
| Title | Graticule lighting structure |
| Inventors | Lloyd E Swedlund |
| Company | Tektronix Inc |
| Filing date | 1963-11-01 |
| Grant date | 1966-10-25 |
| Cites |