Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978499 | Soft steel for machine cutting and method of producing it | Gilles Pierson, Louis Payraudeau | 1990-12-18 |
| 4210444 | Magnesium-free, fine-grained structural steel with improved machinability and workability | — | 1980-07-01 |