Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964321 | Ball turner for turning lathes | Hans-Jurgen Leiber, Christian F. Kummer | 1990-10-23 |
| 4887500 | Ball turner for turning lathes | Hans-Jurgen Leiber, Christian F. Kummer | 1989-12-19 |