Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4745272 | Apparatus for identifying articles from received illumination with light adjustment means | — | 1988-05-17 |
| 4730213 | Method measuring transparent elements and an opaque medium | Daniel Kelly, Frank S. Krufka | 1988-03-08 |
| 4635124 | Auxiliary focusing circuit for automatic focusing camera | Frank S. Krufka | 1987-01-06 |