Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453945 | Coupling for multiple hydraulic pipes | Friedrich-Wilhelm Schumacher | 2002-09-24 |
| 6442919 | Grain lifter | Friedrich-Wilhelm Schumacher, Srecko Klepej | 2002-09-03 |
| 6379243 | Sieve for a thresher, especially a combine-harvester for harvesting grains | Friedrich-Wilhelm Schumacher | 2002-04-30 |