Patent US 4916306A
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| Patent number | US 4916306A |
|---|---|
| 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 |
| Cites |