Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5913506 | Ball cock of plastics material | Egon Kohlstadt | 1999-06-22 |
| 4793659 | Spoked wheel of synthetic material and method of making therefor | Werner Oleff | 1988-12-27 |
| 4639046 | Injection molded synthetic wheel | Werner Oleff | 1987-01-27 |
| 4181316 | Skate Board | Dieter Brand | 1980-01-01 |