Patent US 3573813A
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Patent number | US 3573813A (click link for details and documents via Google Patents) |
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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 |