Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663482 | Modular coin handling and sorting device | John R. Nottingham, William J. Knox, Jr., John W. Spirk, Douglas A. Gall | 2003-12-16 |
| D477446 | Nozzle for vacuum cleaner | Jeffrey M. Kalman, David J. Boll | 2003-07-15 |
| D475822 | Housing for a stick-type vacuum cleaner | Jeffrey M. Kalman, David J. Boll | 2003-06-10 |
| D475491 | Dust cup for vacuum cleaner | Jeffrey M. Kalman, David J. Boll | 2003-06-03 |