4. Optics: motion pictures
  5. Removable film strip magazine type

George Pappanikolaou

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Front projection system embodying a single lens

Optics: motion pictures – Removable film strip magazine type
Patent

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Inflatable umbrella

Tent – canopy – umbrella – or cane – Umbrella – Inflatable
Patent

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Pick-proof lock cylinder and key therefor

Locks – Operating mechanism – Key
Patent

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Symmetrical air friction enclosure for speakers

Acoustics – Diaphragm and enclosure – Reflex baffle
Patent

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Profile ID: LFUS-PAI-P-484569

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