Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071333 | Apparatus for forming a powder metal mirror | Donald W. Burt | 1991-12-10 |
| 4993791 | Powder metal mirror | Donald W. Burt | 1991-02-19 |
| 4898711 | Powder metal mirror | Donald W. Burt | 1990-02-06 |