Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6521009 | Reverse flow air filter arrangement and method | Donald F. Engel, Dolan Bartels, Bruce Crenshaw, Don Harold | 2003-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6521009 | Reverse flow air filter arrangement and method | Donald F. Engel, Dolan Bartels, Bruce Crenshaw, Don Harold | 2003-02-18 |