Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164708 | Single unit, multi signal, variable plane measuring and leveling device | — | 1992-11-17 |
| 5111188 | Electronic fluid-level sensor with three state indicator | Kirk G. Kitchen, Igor A. Levin | 1992-05-05 |
| 4231163 | Level indicating and elevation indicating device | — | 1980-11-04 |