Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798518 | Fan unit for use with duct systems | Vinzenz Holzberger | 1989-01-17 |
| 4526506 | Radial fan with backwardly curving blades | Udo Haas | 1985-07-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798518 | Fan unit for use with duct systems | Vinzenz Holzberger | 1989-01-17 |
| 4526506 | Radial fan with backwardly curving blades | Udo Haas | 1985-07-02 |