Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835013 | Process of manufacturing a substrate provided with a synthetic resin-bonded friction coating | Friedrich Heck | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835013 | Process of manufacturing a substrate provided with a synthetic resin-bonded friction coating | Friedrich Heck | 1989-05-30 |