Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993899 | Apparatus for automatic insertion and alignment of freight units | Hinrich Engel, Hartmut Sempert | 1991-02-19 |
| 4834062 | Multiblade inner hole saw for the sawing of crystal rods into thin blades | Walter Frank | 1989-05-30 |