Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883153 | Friction clutch | Edmund Maucher, Kurt Frietsch, Paul Maucher | 1989-11-28 |
| D302822 | Cover side of a friction clutch | — | 1989-08-15 |
| D302823 | Cover side of a friction clutch | — | 1989-08-15 |
| 4834832 | Process and apparatus for the manufacture of silicon rods | Horst Stock, Georg Priewasser | 1989-05-30 |
| 4811474 | Friction clutch | Paul Maucher | 1989-03-14 |