Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4207776 | Adjustable emergency fan belt | Raymond E. Helt | 1980-06-17 |
| 4197368 | Lead acid battery plate having sodium silicate as a dust preventative | Ralph E. Thomas, Philip A. Bernstein | 1980-04-08 |