Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890181 | Short-circuit protection device for an electrical machine fed by a pulse-controlled A.C. converter | Bernhard Piepenbreier, Hans-Juergen Toelle | 1989-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890181 | Short-circuit protection device for an electrical machine fed by a pulse-controlled A.C. converter | Bernhard Piepenbreier, Hans-Juergen Toelle | 1989-12-26 |