Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830504 | Gloss gauge | John A. Dahlquist, John J. Howarth | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830504 | Gloss gauge | John A. Dahlquist, John J. Howarth | 1989-05-16 |