Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363597 | Eyelgass lens edging machine | Lutz Gottschald | 1994-11-15 |
| 4841676 | Turning tool for machining the edges of plastic lenses | — | 1989-06-27 |
| 4837978 | Machine for grinding the edges of lenses | Fritz Kotting | 1989-06-13 |
| 4772160 | Apparatus for machining the edge of a lens | — | 1988-09-20 |