Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6598263 | Vacuum cleaner dirt collecting system with filter cleaning devices | David J. Boles, David A. Bradshaw, Charles R. Morrow, Rodney J. Svik, Kevin S. Waltz | 2003-07-29 |
| 6536074 | Conversion valve assembly | David J. Boles, Jeffery S. Louis, Gregg A. McAllise, William H. McGill, Jr., Dave O'Neal | 2003-03-25 |