Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909241 | Electric periodontal massager | James K. Henderson, Wilfrid M. Raemer | 1990-03-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909241 | Electric periodontal massager | James K. Henderson, Wilfrid M. Raemer | 1990-03-20 |