Patent US 3573813A
| Patent number | US 3573813A (click link for details and documents via Google Patents) |
|---|---|
| Title | Light image display apparatus including selectively illuminated light piping elements |
| Inventors | Andrew R Burns, Peter J. Unger, Robert J Rossman |
| Company | Tektronix Inc |
| Filing date | 1968-10-25 |
| Grant date | 1971-04-06 |