Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4535848 | Wing lift for foldable implements | Billy J. Pfenninger | 1985-08-20 |
| 4232747 | Farm implement and control structure for wing sections thereof | Billy J. Pfenninger | 1980-11-11 |