Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813186 | Apparatus for converting a compressed air operating pulse to a hydraulic operating pulse for a grinding machine especially for a precision griding machine | — | 1989-03-21 |
| 4800682 | Grinder, especially a high precision grinder, for a bearing ring | Martin Wolters, Manfred Loock | 1989-01-31 |