Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424474 | Method and circuit arrangement for controlling the r.p.m. of a three-phase motor | Walter Du/ rr, Dietrich Weisse, Ulrich Simon | 1984-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424474 | Method and circuit arrangement for controlling the r.p.m. of a three-phase motor | Walter Du/ rr, Dietrich Weisse, Ulrich Simon | 1984-01-03 |