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

William C. Raper

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Motion sensing system having short range capability

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
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Photosensitive control with dynamic calibration

Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy controlled regulation of the current supply...
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Wireless variable illumination level lighting system

Communications: electrical – Condition responsive indicating system – Specific condition
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Profile ID: LFUS-PAI-P-2763730

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