Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5174173 | Round file holder for a chain saw sharpener | — | 1992-12-29 |
| 4727776 | Chain saw sharpening system | — | 1988-03-01 |
| 4664101 | Open frame traction system | — | 1987-05-12 |
| 4466427 | Traction device | — | 1984-08-21 |
| 4432421 | Garden tool with self-cleaning earth-working elements | — | 1984-02-21 |
| 4356816 | Traction device | — | 1982-11-02 |