Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850152 | Apparatus for lapping and polishing optical surfaces | Klaus Beckstette, Michael Schmidt | 1989-07-25 |
| 4802309 | Method and apparatus for lapping and polishing optical surfaces | — | 1989-02-07 |
| 4606151 | Method and apparatus for lapping and polishing optical surfaces | — | 1986-08-19 |
| 4538911 | Three-dimensional interferometric length-measuring apparatus | Reinhard Ludewig | 1985-09-03 |