Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271222 | Jet propulsion powerplants | Douglas F. Kerr | 1993-12-21 |
| 4506274 | Time card recorder and method for identifying employee work schedule | — | 1985-03-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271222 | Jet propulsion powerplants | Douglas F. Kerr | 1993-12-21 |
| 4506274 | Time card recorder and method for identifying employee work schedule | — | 1985-03-19 |