Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4592403 | Emergency operation ring for tubeless tires in motor vehicles | Hermann Stein | 1986-06-03 |
| 4371024 | Emergency running ring for pneumatic vehicle tires | Hermann Stein | 1983-02-01 |