Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617794 | Track stabilization machine having stabilization units linked to oscillating out of phase with each other | Josef Theurer | 1997-04-08 |
| 5591915 | System for the continuous measurement of the resistance of a track to transverse displacement | Josef Theurer | 1997-01-07 |