Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4704527 | Device for the separation of airborne particles into grain size classes | — | 1987-11-03 |
| 4704528 | Device for the separation of airborne particles into classes by grain size | — | 1987-11-03 |
| 4639311 | Device for separating airborne particles into grain size classes | — | 1987-01-27 |