Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354665 | Valve for opening and closing a fluid conduit | Pierre Mailliet | 1982-10-19 |
| 4325312 | Method and installation of injection of solid fuels into a shaft furnace | — | 1982-04-20 |