Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754272 | Three aspect signalling device using no moving parts | Ronald J. Refici, Lynn Van Orden | 1988-06-28 |
| 4564829 | Railway signaling relay | Ronald W. Dinger, David A. Kunde, Anthony V. Lucarelli | 1986-01-14 |