Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883509 | Multi stage gas inlet construction for dust collectors | Robert W. Duyckinck | 1989-11-28 |
| 4883510 | Gas inlet construction for fabric filter dust collections | Robert W. Duyckinck | 1989-11-28 |
| 4799943 | Gas stream diffusing and distribution apparatus | Thomas V. Reinauer, Raymond J. DeHont | 1989-01-24 |