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

Rasvan N. Dragne

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Seed counting apparatus for a planter monitor

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

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Seed counting apparatus for a planter monitor

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

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Tube blockage monitor

Optics: measuring and testing – By particle light scattering
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1020605

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