Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220446 | Particle size classifier | Reinhard Witt | 2001-04-24 |
| 4344702 | Adapter for photographic enlarger and method of attaching same | — | 1982-08-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6220446 | Particle size classifier | Reinhard Witt | 2001-04-24 |
| 4344702 | Adapter for photographic enlarger and method of attaching same | — | 1982-08-17 |