Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632916 | Laser marking method and a metal surface marked by this method | Reijo Lappalainen, Sten Sirén, Pertti Helle | 1997-05-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632916 | Laser marking method and a metal surface marked by this method | Reijo Lappalainen, Sten Sirén, Pertti Helle | 1997-05-27 |