Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868440 | Commutator for small to medium-sized machines | Lothar Woerner, Dietrich Ersing | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868440 | Commutator for small to medium-sized machines | Lothar Woerner, Dietrich Ersing | 1989-09-19 |