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

Thomas C. Hartmann

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Safety system with intermittent photoelectric beam

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

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Soap dispenser system and valve arrangement therefor

Fluid sprinkling – spraying – and diffusing – Including supply holder for material – To be mixed – dissolved or entrained in a flowing liquid...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1809378

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