Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4391425 | Railroad switch heater | — | 1983-07-05 |
| 4388523 | Electrical heating cable connector | Daniel A. Santagata, Matthew HARRIS, William H. Welsh, Jr. | 1983-06-14 |
| RE31081 | Railroad switch heater | — | 1982-11-16 |
| 4195805 | Railroad switch heater | — | 1980-04-01 |