Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354665 | Valve for opening and closing a fluid conduit | Leon Ulveling | 1982-10-19 |
| 4322197 | Process and installation for charging a shaft furnace | Rene N. Mahr, Henri Radoux, Emile Lonardi | 1982-03-30 |