Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998097 | Mechanically operated pressure switch having solid state components | Bruce Edward Kierstead | 1991-03-05 |
| 4642478 | Mechanically operated pressure switch having solid state components | — | 1987-02-10 |