Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571866 | Adjustably mountable display frame | Charles F. Sherman | 1986-02-25 |
| D282145 | Display frame hanger | Charles F. Sherman | 1986-01-14 |
| 4385744 | Anti-theft frame hanging system | Charles F. Sherman, Helmar Nielsen | 1983-05-31 |