Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712660 | Electromotive variable-speed and control drive particularly for use in industrial sewing machines | Hans Erndt, Adolf H. Martin, Herbert Palloch, Hilmar Wittler | 1987-12-15 |
| 4709794 | Electromotive variable-speed and control drive particularly for use in industrial sewing machines | Karl Lengsfeld, Adolf H. Martin, Hilmar Wittler | 1987-12-01 |
| 4703841 | Adjustable electromagnetic clutch brake | Karl Lengsfeld, Hans Erndt | 1987-11-03 |
| 4556132 | Adjustable electromagnetic clutch/brake | Karl Lengsfeld, Hans Erndt | 1985-12-03 |
| 4364001 | Circuit arrangement for energy economy | Alfred Heidt, Wolfgang Ortlieb | 1982-12-14 |