Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4390821 | Device for changing the relative angular positions of operating shafts of a group electric drive | Dietrich Krampe | 1983-06-28 |
| 4353015 | Apparatus for changing the relative phase angles of output shafts of a multiple motor electric drive | Dietrich Krampe | 1982-10-05 |