Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862592 | Write head for a drawing machine having a deformable mounting for a writing member | Jean-Louis Richard | 1989-09-05 |
| 4832512 | Plotting machine | Jacques C. E. Pervillé, Thierry Lasjaunias, Jean-Claude Dard | 1989-05-23 |