4. Animal husbandry
  5. Feeding device
  6. Having electronic identification and feed control

William Edward Spencer

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Livestock identification apparatus

Animal husbandry – Feeding device – Having electronic identification and feed control
Patent

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Wet line fluid removal system with optical sensor

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

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Profile ID: LFUS-PAI-P-1211976

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