Patent US 3809888A
Patent number | US 3809888A (click link for details and documents via Google Patents) |
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Title | Photographic apparatus |
Inventors | W Stock, M Balsiger, W Beran |
Company | Tektronix Inc |
Filing date | 1971-09-13 |
Grant date | 1974-05-07 |
Patent number | US 3809888A (click link for details and documents via Google Patents) |
---|---|
Title | Photographic apparatus |
Inventors | W Stock, M Balsiger, W Beran |
Company | Tektronix Inc |
Filing date | 1971-09-13 |
Grant date | 1974-05-07 |