Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4500037 | Railway road bed | Hans Braitsch, Hermann Ortwein | 1985-02-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4500037 | Railway road bed | Hans Braitsch, Hermann Ortwein | 1985-02-19 |