4. Photography and optical equipment
  5. Projector or viewer
  6. Overhead or opaque type

Eric Fan

Inventor

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Overhead projector

Photography and optical equipment – Projector or viewer – Overhead or opaque type
Patent

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Retractable projector

Illumination – Light source and modifier – Adjustable or repositionable modifier
Patent

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Structure and method for secure image transmission

Cryptography – Key management – Having particular key generator
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Profile ID: LFUS-PAI-P-417188

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