Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4503893 | Disc type wood chipper knife having positioning serrations and intermediate land therebetween | — | 1985-03-12 |
| 4423758 | Disc type wood chipper knife having position adjusting serrations | Jack R. Haller | 1984-01-03 |