Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5241911 | Conveyor system including a support rail with travel surfaces for driven support wheels of vehicles | Johannes Gerhard Spoler | 1993-09-07 |
| 5235917 | Monorail trolley with U-shape frame extending over, above, and surrounding the rail | Johannes Gerhard Spoler, Reinhard Siegmund | 1993-08-17 |