Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329132 | Hole plugging system | Robert W. Melvold, John J. Vrolyk | 1982-05-11 |
| 4318766 | Process of using photocopolymerizable compositions based on epoxy and hydroxyl-containing organic materials | — | 1982-03-09 |