4. Optics: image projectors
  5. Slide transfer mechanism
  6. Slides fixed to movable carrier
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Track-type slide projector magazine

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier
Patent

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Transparency transport system for overhead projector

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier
Patent

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Transparent film projector

Optics: image projectors – Slide transfer mechanism – Slides fixed to movable carrier
Reexamination Certificate

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