Patent US 4916306A
Patent number | US 4916306A (click link for details and documents via Google Patents) |
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Title | Device for detecting spatial variation in the intensity of electromagnetic radiation |
Inventors | Denis L. Heidtmann, Morley M. Blouke |
Company | Tektronix |
Filing date | 1988-07-14 |
Grant date | 1990-04-10 |