Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6360998 | Method and apparatus for controlling trains by determining a direction taken by a train through a railroad switch | David H. Halvorson, Joe B. Hungate | 2002-03-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6360998 | Method and apparatus for controlling trains by determining a direction taken by a train through a railroad switch | David H. Halvorson, Joe B. Hungate | 2002-03-26 |