Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4703966 | Vacuum lifting arrangement | Ernst Lewecke | 1987-11-03 |
| 4693458 | Clamping arrangement for lumber elements | Ernst Lewecke | 1987-09-15 |
| 4674785 | Vacuum lifting arrangement | — | 1987-06-23 |