Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213450 | Appliance for the dispensing of bulk material | — | 1993-05-25 |
| 4979756 | Seal arrangement | Wolfgang Krambrock | 1990-12-25 |
| 4478517 | Process and gravity feed mixer for mixing bulk materials in a container | Hans Hoppe, Wolfgang Siegel | 1984-10-23 |