Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4207920 | Swivel assembly for interconnecting two relatively movable conduits | — | 1980-06-17 |
| 4192644 | Cooled grate for supporting a workpiece in an oven | Wilhelm Riege | 1980-03-11 |