Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728992 | Process and a device for adjusting a photographic color enlarging or copying apparatus | Alex Vinatzer | 1988-03-01 |
| D271774 | Photographic enlarging apparatus | — | 1983-12-13 |