Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883509 | Multi stage gas inlet construction for dust collectors | Giambattista Giusti | 1989-11-28 |
| 4883510 | Gas inlet construction for fabric filter dust collections | Giambattista Giusti | 1989-11-28 |