Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441431 | Railway hatch cover and strap safety tab latching assembly | Richard L. Gilbert | 1984-04-10 |
| 4397591 | Pneumatic outlet control valve | Gary L. Vierck | 1983-08-09 |
| 4248160 | Railway hatch cover and strap latching assembly | John A. Krug | 1981-02-03 |