Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528912 | Track leveling method | Johann Hansmann | 1985-07-16 |
| 4497256 | Mobile track position correction machine | Johann Hansmann | 1985-02-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528912 | Track leveling method | Johann Hansmann | 1985-07-16 |
| 4497256 | Mobile track position correction machine | Johann Hansmann | 1985-02-05 |