Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D642596 | Snowthrower power head | David J. Martin, Chadwick A. Shaffer, Kevin D. Docken | 2011-08-02 |
| 7870640 | Convertible blower/vacuum | David J. Martin | 2011-01-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D642596 | Snowthrower power head | David J. Martin, Chadwick A. Shaffer, Kevin D. Docken | 2011-08-02 |
| 7870640 | Convertible blower/vacuum | David J. Martin | 2011-01-18 |