Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813188 | Method of shaping workpieces especially forming undercut archimedean spirals | Georg Becker | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813188 | Method of shaping workpieces especially forming undercut archimedean spirals | Georg Becker | 1989-03-21 |