Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656488 | Transportation equipment recorder with time accuracy | — | 1987-04-07 |
| 4633270 | Transportation equipment recorder for highlighting operating parameters outside of preset limits | — | 1986-12-30 |
| 4595932 | Recorder with circuit line tamper indicating system | — | 1986-06-17 |
| 4293844 | Variable acceleration monitoring system | — | 1981-10-06 |
| 4245598 | Speed control device | — | 1981-01-20 |