Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5228552 | Loading device for mining | Erich Brandl, Alfred Zitz | 1993-07-20 |
| 5000306 | Chain conveyor for loading devices and/or conveying devices | Alfred Zitz, Erich Brandl | 1991-03-19 |
| 4998777 | Coal-cutting machine having horizontally swivellable jib boom and vertically swivellable loading means | Otto Schetina, Werner Stecher, Helmut Habenicht, Wilhelm Papst, Bernhard Pleterski | 1991-03-12 |
| 4605119 | Drive arrangement for the loading arms of a loading ramp for heading machines or longwall shearing machines | Josef Keuschnigg | 1986-08-12 |
| 4552263 | Drive arrangement for the loading arms of a loading ramp for heading machines or longwall shearing machines | Franz Schoffmann, Alfred Zitz, Gerhard Steinbrucker | 1985-11-12 |
| 4379594 | Process for sinking of shafts | Alfred Zitz, Otto Schetina, Herwig Wrulich | 1983-04-12 |
| 4188069 | Mining machine having walk-on platform on cutter arm | Florian Sussenbacher | 1980-02-12 |