Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864091 | Servocontrol device for an erosion machine | — | 1989-09-05 |
| 4858140 | Numerical control system for highly dynamic processes | Ernst Buhler | 1989-08-15 |
| 4822970 | Method and apparatus for purging the eroding zone during electroerosive countersinking | Gideon Levy, Claudio Libotte, Silvano Magginetti | 1989-04-18 |