Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5527991 | Grounding strap for panel mounted electrical switch | Walter A. Sadowski, Richard M. Olson | 1996-06-18 |
| 5451733 | Combination low oil indicator and kill switch for internal combustion magneto driven engine | Richard M. Olson | 1995-09-19 |
| 4476826 | Vane type rotary internal combustion engine with transfer valve in rotor | — | 1984-10-16 |