4. Photography and optical equipment
  5. Projector or viewer
  6. With provision for transparency magazine

Peter T. Quinn

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Registers – Coded record sensors – Particular sensor structure
Patent

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Calculator for electronic flash

Registers – Coded record sensors – Particular sensor structure
Patent

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Camera flash attachment

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Electronic flash device

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Electronic flash device

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Profile ID: LFUS-PAI-P-482380

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