Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4901871 | Drying rack | Heinz J. Ohm | 1990-02-20 |
| 4502173 | Floor-sweeping machine | Dieter P/a/ tzold, Alfons Schreiber | 1985-03-05 |
| 4484371 | Floor-sweeping machine | Dieter Patzold, Alfons Schreiber | 1984-11-27 |
| 4484372 | Floor-sweeping machine | Dieter Patzold, Alfons Schreiber | 1984-11-27 |
| D274663 | Carpet sweeper with additional rotable edge brushes | Dieter Patzold | 1984-07-10 |
| 4420904 | Device for feeding potted plants | Siegfried Joswig, Johannes Liebscher, Peter Keils | 1983-12-20 |