4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controls its own optical systems

Erwin Wiedmann

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Optical control circuit for electrochromic layers

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent

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Photographic camera shutter electromagnetic system for controlli

Electrical generator or motor structure – Dynamoelectric – Rotary
Patent

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Refractometer for the automatic objective determination of the r

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Folding
Patent

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Wireless remote-control system for a camera or the like

Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent

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Profile ID: LFUS-PAI-P-1645946

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