Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776405 | Rotary driven cultivator with support arm between clutch casing and gear box | C. Austin Grieder, John R. Durfee | 1988-10-11 |
| 4648238 | Removable grass catcher | C. Austin Greider, Terry R. Lee, John R. Durfee | 1987-03-10 |