Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084812 | Arrangement for converting two single-phase alternating currents into a symmetric three-phase current | Michael Häusler | 1992-01-28 |
| 4462237 | Method of bending frame material for the production of compound plates, particularly compound glass panes | Werner Lutzke | 1984-07-31 |
| 4356614 | Method for the production of compound plates, particularly compound glass panes | Werner Lutzke | 1982-11-02 |