Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5408736 | Process of manufacturing a friction ring for use in a clutch or brake | Karl Ammer, Gerhard Hartner | 1995-04-25 |
| 5372793 | Process of manufacturing a friction ring for use in a clutch or brake | Karl Ammer, Gerhard Hartner | 1994-12-13 |