Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6240934 | Method and device for treating holes or recesses extending into workpieces with liquid treatment media | Franz Durst, Günter Brenn, Heinrich Meyer, Heribert Streup | 2001-06-05 |
| 6056533 | Apparatus for conduit extrusion | Thomas W. Hawkins, Jesse Ellison | 2000-05-02 |
| 5372355 | Tap closure for a vacuum-induction melting and casting furnace | Alfred Henn | 1994-12-13 |