Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173371 | Battery to prevent cell reversal | Harry R. Huhndorff | 1992-12-22 |
| 4802327 | Mower attachment | — | 1989-02-07 |
| 4303959 | Fail safe surge arrester systems | Raymond D. Jones | 1981-12-01 |