Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684052 | Method of brazing carbide using copper-zinc-manganese-nickel alloys | Allen S. McDonald, Thomas A. Sperakis | 1987-08-04 |
| 4631171 | Copper-zinc-manganese-nickel alloys | Allen S. McDonald, Thomas A. Sperakis | 1986-12-23 |