Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4374313 | Arrangement for working internal rotational surfaces of metal parts in a cylindrical opening having a high slenderness ratio | Zdenek Chaloupka | 1983-02-15 |
| 4363950 | Arrangement for electrospark working of internal conical surfaces of metal parts | Josef Prasek | 1982-12-14 |