4. Optics: image projectors
  5. Episcope
  6. Reflector between lamp and screen

Gerald Altman

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Dual purpose photographic displays

Optics: image projectors – Episcope
Patent

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Infrared cooler for restricted regions

Refrigeration – Refrigeration producer
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Infrared cooler for restricted regions

Refrigeration – Refrigeration producer
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Infrared radiation cooler for producing physiologic conditions s

Refrigeration – Using electrical or magnetic effect – Thermoelectric; e.g. – peltier effect
Patent

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Infrared radiation cooler for producing physiologic conditions s

Refrigeration – Using electrical or magnetic effect – Thermoelectric; e.g. – peltier effect
Patent

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