Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869627 | Guide device for a deep drilling tool | — | 1989-09-26 |
| 4591300 | Deep-drilling tool | Werner Jenny | 1986-05-27 |
| 4574439 | Deep boring machine | — | 1986-03-11 |
| 4548530 | Reboring tool | — | 1985-10-22 |