Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934131 | Pull type swather frame | Kenneth A. Frisk | 1990-06-19 |
| 4831814 | Pull type swather | Kenneth A. Frisk | 1989-05-23 |
IK
Irving B. Kardal
Overall (All Time): #2,324,441 of 4,157,543Top 60%
2
Patents All Time