Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6564940 | Electric toothbrush | Lawrence A. Blaustein, John R. Nottingham, John W. Spirk, Douglas A. Gall | 2003-05-20 |
| 6546585 | Toothbrush with detachable/replaceable head | Lawrence A. Blaustein, John R. Nottingham, John W. Spirk | 2003-04-15 |