4. Card, picture, or sign exhibiting
  5. Photographic transparency viewer, e.g., x-ray viewer

Ben-zion Levi

Inventor

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Display device

Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Patent

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Display device

Card – picture – or sign exhibiting – Photographic transparency viewer – e.g. – x-ray viewer
Reexamination Certificate

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Transparency viewing device comprising passive matrix LCD

Liquid crystal cells – elements and systems – Particular structure – Particular illumination
Patent

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Profile ID: LFUS-PAI-P-2032189

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