Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6392527 | Impact detection system | Gordon B. Langford | 2002-05-21 |
| 5295837 | Magnetic visual display | Gordon B. Langford | 1994-03-22 |
| 5112229 | Magnetic visual display | Gordon B. Langford | 1992-05-12 |
| 5018979 | Magnetic visual display | Gordon B. Langford | 1991-05-28 |