4. Radiant energy
  5. Invisible radiant energy responsive electric signalling
  6. Infrared responsive

Werner Adrian

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Anti-glare spectacles

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent

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Apparatus for measuring the concentration of gases

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
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Device for measuring concentration of a gas

Optics: measuring and testing – Sample – specimen – or standard holder or support – Fluid containers
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Device for measuring the concentration of a gas

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent

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Profile ID: LFUS-PAI-P-1192697

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