Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4579891 | Feldspar containing protective composition | William E. Dugan | 1986-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4579891 | Feldspar containing protective composition | William E. Dugan | 1986-04-01 |