Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7549191 | Gutter cleaning blower vacuum attachment apparatus | Craig A. Seasholtz | 2009-06-23 |
| 7337494 | Electrostatic cloth attachment for vacuum head | Mark E. Baer, Robert L. Crevling, Jr. | 2008-03-04 |
| D560865 | Vacuum | John Griffin, Robert L. Crevling, Jr. | 2008-01-29 |