Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D462667 | Hand piece switch adapter | William T. Donofrio, Richard Michael Harper, Richard F. Schwemberger, Mary E. Schramm | 2002-09-10 |
| 6338657 | Hand piece connector | Richard Michael Harper, William T. Donofrio | 2002-01-15 |