Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345923 | Air purifier with hermetic sealing | — | 1982-08-24 |
| 4322230 | Unitized gas-particulate filter and housing | Jerry John Klug | 1982-03-30 |
| 4266830 | Auger construction providing reduced noise | Thomas J. Retka | 1981-05-12 |
| 4266953 | Mechanism for removing dust particles from an engine air cleaner | Bernard A. Matthys, Carl Anderson | 1981-05-12 |