Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5269660 | Method and an installation for adjusting the flow rate of air in a network of ducts | — | 1993-12-14 |
| 4871214 | Cheeking device, particularly for the hanging roof in mines, underground working points, or heading and similar | — | 1989-10-03 |
| 4780052 | Rotary blower with guide sleeve | — | 1988-10-25 |