Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4777691 | Motor driven brush assembly for vacuum cleaner | David Erickson | 1988-10-18 |
| 4665582 | Lightweight battery powered suction broom | Joyce Thomas, Samuel E. Hohulin | 1987-05-19 |