Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639660 | Method for marking at least one point on an object | Sven Blickle, Hans Ramsperger | 2003-10-28 |
| 4603951 | Spectacle frame with securing band | Alfons Schulte | 1986-08-05 |