Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953814 | Railway switch comprising a frog having a movable main point and auxiliary point | Johannes Oswald | 1990-09-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953814 | Railway switch comprising a frog having a movable main point and auxiliary point | Johannes Oswald | 1990-09-04 |