Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5433166 | Railway light signal | David A. Donatello, Kenton H. Barker, James M. Martin | 1995-07-18 |
| 4564829 | Railway signaling relay | Cornelius J. Illenberg, David A. Kunde, Anthony V. Lucarelli | 1986-01-14 |