Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396262 | Hand held transparency projector with simple advance mechanism | John J. Richardson | 1983-08-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4396262 | Hand held transparency projector with simple advance mechanism | John J. Richardson | 1983-08-02 |