Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859324 | Apparatus for filtering machine liquid of an electroerosion machine | Josef Budin, Benjamin Moergeli | 1989-08-22 |
| 4847463 | Method for the electroerosive machining of electrically slightly or non-conductive workpieces, as well as electroerosion machine for performing the method | Daryl Di Bitonto | 1989-07-11 |
| 4822970 | Method and apparatus for purging the eroding zone during electroerosive countersinking | Claudio Libotte, Marco Boccadoro, Silvano Magginetti | 1989-04-18 |