Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299481 | Adjustable current lamphouse | — | 1981-11-10 |
| D260138 | Photograpic timer | James M. Zeiszler | 1981-08-11 |
| D259198 | Digital exposure meter | — | 1981-05-12 |
| D257355 | Motorized base for use in developing photographic prints | — | 1980-10-14 |
| 4203668 | Digital exposure meter | — | 1980-05-20 |