Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805521 | Chuck with additional cutting elements | Klaus Sperber | 2004-10-19 |
| 6460435 | Method of rotational thread milling and a thread milling cutter for use therewith | Helmut Glimpel | 2002-10-08 |