Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4538686 | Ballast cleaning machine | Josef Theurer | 1985-09-03 |
| 4530403 | Ballast cleaning machine | Josef Theurer, Friedrich Oellerer | 1985-07-23 |
| 4450771 | Mobile ballast cleaning machine | Josef Theurer | 1984-05-29 |
| 4432284 | Mobile ballast cleaning machine | Josef Theurer, Klaus Riessberger, Wolfgang Zeppelzauer, Wilfried Glawischnig | 1984-02-21 |
| 4355687 | Ballast leveling apparatus and method | Josef Theurer | 1982-10-26 |
| 4284009 | Motorized railway vehicle track working machine and method of operation | Josef Theurer | 1981-08-18 |
| 4267777 | Mobile ballast cleaning machine | Josef Theurer | 1981-05-19 |
| 4263851 | Mobile ballast cleaning machine | Josef Theurer | 1981-04-28 |
| 4245703 | Mobile ballast cleaning machine | Josef Theurer | 1981-01-20 |