Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374215 | Vertically adjustable vent cover having venturi cone | Brian D. Crider | 1994-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374215 | Vertically adjustable vent cover having venturi cone | Brian D. Crider | 1994-12-20 |