Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5628033 | Accident investigation and reconstruction mapping with aerial photography | John M. Goebelbecker | 1997-05-06 |
| 4813305 | Safety mechanism for vertical closure | — | 1989-03-21 |
| 4771505 | Force distribution bottom guard for vertically closing door | — | 1988-09-20 |