Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325421 | Method and apparatus for cutting and trimming shingles | Donald F. Hammond, Winston Harvey | 1982-04-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325421 | Method and apparatus for cutting and trimming shingles | Donald F. Hammond, Winston Harvey | 1982-04-20 |