Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4569432 | Arrangement for feeding of a fine-particle material to electrostatic free-fall cutter | Helmut Zentgraf, Gunter Fricke, Iring Geisler, Hans Burghardt, Fritz Maikranz | 1986-02-11 |