Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4445405 | Lathes with central headstock | Marcel Champeau | 1984-05-01 |
| 4296658 | Clamping device for simultaneously machining internally and/or externally, the two ends of a workpiece | Marcel Champeau | 1981-10-27 |