- Slide projectors.

- Film projectors.

- Films (Viewers for -).

- Viewers for slides.

- Overhead projectors.

- Diaprojection apparatus.

- X-ray viewing apparatus.

- Projectors and viewers.

- Projectors.

- Transparencies projectors.

- Viewers.

- Visual presentation systems.

- Visual projectors.

- Casings for projectors and viewers.

- Laser projecting apparatus.

- Video projectors.

- LCD projectors.

- Photo Viewers.