Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6549005 | Magnetic detection of discontinuities in railway rails using hall effect sensors | Sid Hay, Robert Gordon Vanselow | 2003-04-15 |
| 4694580 | Machine for guiding and marking plystock | — | 1987-09-22 |