Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D262791 | Glass coated impeller | Vincent J. Piarulli, Erwin J. Nunlist | 1982-01-26 |
| 4264215 | Separable blade impeller | Erwin J. Nunlist, Vincent J. Piarulli | 1981-04-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D262791 | Glass coated impeller | Vincent J. Piarulli, Erwin J. Nunlist | 1982-01-26 |
| 4264215 | Separable blade impeller | Erwin J. Nunlist, Vincent J. Piarulli | 1981-04-28 |