Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842247 | Method and apparatus for the detection of helicopters | Gunther Kurbitz, Hans-Richard Weinheimer | 1989-06-27 |
| 4803865 | Stand-supported bending device for axially slidable rolls of a multiroll rolling mill | Johannes Jansen, Friedel Mogendorf | 1989-02-14 |