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

Mark Crandall

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Multifunctional personal alert safety system

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Optical motion and angular position sensing method and sensor

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

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Profile ID: LFUS-PAI-P-1583590

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