Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876796 | Sprocket assembly for chain saws | Eugene E. Calkins | 1989-10-31 |
| 4862593 | Saw chain hook angle gauge | — | 1989-09-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876796 | Sprocket assembly for chain saws | Eugene E. Calkins | 1989-10-31 |
| 4862593 | Saw chain hook angle gauge | — | 1989-09-05 |