Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851017 | Radial cooling fan for vacuum cleaner motor | Roy O. Erickson, Jr., John J. Alberts, III | 1989-07-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851017 | Radial cooling fan for vacuum cleaner motor | Roy O. Erickson, Jr., John J. Alberts, III | 1989-07-25 |