Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820979 | Electronic instrument unit for use on a bicycle having a signal receiver on both sides of the unit | Hans J. Schwerdhofer, Johannes Jager, Gunter Look | 1989-04-11 |
| 4800634 | Method of manufacturing a bicycle hub sleeve | Gunter Look, Werner Seybold, Werner Steuer | 1989-01-31 |