| 4254 | Screen, Tangent, Target | Tangent Screen (campimeter). |
| 4254 | Screen, Tangent, Target | Tangent Screen (campimeter). |
| K873919 | TANGENT SCREEN | RICHMOND PRODUCTS, INC. |
| K844657 | SPECTABLE FRAME MAGNIFYING BRILLETTE | PRO DESIGN INTL. AS |
| K821081 | CHART PROJECTOR | MEDICAL EQUIPMENT DESIGNS, INC. |