Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5806810 | Spring rail frog having switchable magnet for holding wing rail open | Stephen R. Kuhn | 1998-09-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5806810 | Spring rail frog having switchable magnet for holding wing rail open | Stephen R. Kuhn | 1998-09-15 |