Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039038 | Railroad communication system | Richard E. D. Nichols, Hans Scharla-Nielsen, Dale H. Delaruelle | 1991-08-13 |
| 4582280 | Railroad communication system | Richard E. D. Nichols, Hans Scharla-Nielsen, Dale H. Delaruelle | 1986-04-15 |