Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4305673 | High efficiency mixing impeller | — | 1981-12-15 |
| D255451 | Blade for mixing liquids in a conduit | Ronald N. Salzman, William F. Hutchings, William J. Montagno | 1980-06-17 |