Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861000 | Installation having several elements for heat treatments | Pascal Beuret | 1989-08-29 |
| 4858893 | Bell furnance and hardening vat arrangement | Pascal Beuret | 1989-08-22 |
| 4808294 | Probe for measuring the partial pressure of oxygen in a gaseous atmosphere in relation to a reference atmosphere | Jacques Beuret | 1989-02-28 |