Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848893 | Spectacle frame with lockable custom fitting nosepiece | — | 1989-07-18 |
| 4810080 | Protective eyewear with removable nosepiece and corrective spectacle | Arlene J. Philla | 1989-03-07 |