Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D547630 | Chain saw | David B. Fisher, David E. Champlin | 2007-07-31 |
| D545157 | Chain saw | David B. Fisher, David E. Champlin | 2007-06-26 |
| RE33892 | Tire bead breaker | — | 1992-04-21 |
| 4913770 | Tire bead breaker | — | 1990-04-03 |