Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4647215 | Ragless propeller draft tube mixer | Ralph B. Haymore | 1987-03-03 |
| 4575256 | Ragless propeller draft tube mixer | Ralph B. Haymore | 1986-03-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4647215 | Ragless propeller draft tube mixer | Ralph B. Haymore | 1987-03-03 |
| 4575256 | Ragless propeller draft tube mixer | Ralph B. Haymore | 1986-03-11 |