Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813133 | Apparatus for a medical treatment preparation procedure | David R. Locke | 1989-03-21 |
| 4805300 | Electric dry shaver having an improved drive arrangement | — | 1989-02-21 |
| 4803780 | Electric dry shaver having an improved trimmer arrangement | David R. Locke, Richard M. McCarthy | 1989-02-14 |