Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498647 | Device for measuring visual range | — | 2002-12-24 |
| 6462815 | Device for optically testing surfaces | Pawel Drabarek, Rolf Ofen | 2002-10-08 |
| 6355907 | Optical device for boring using a laser beam | Norbert Streibl | 2002-03-12 |