4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Design Engine

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Corporate Assignee

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Digital, touchless electrical switch

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Wrapping device

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Design Patent

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