Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813601 | Piezoelectric control valve for controlling fuel injection valve in internal-combustion engines | Paul Schwerdt | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813601 | Piezoelectric control valve for controlling fuel injection valve in internal-combustion engines | Paul Schwerdt | 1989-03-21 |