4. Animal husbandry
  5. Watering or liquid feed device
  6. Fountains and troughs

Norman P. Nilsen

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Back flow check and self-cleaning spring biased waterer valve

Animal husbandry – Watering or liquid feed device – Fountains and troughs
Patent

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Cup waterer and cage mount

Animal husbandry – Milkers – With signals – indicators – registers – and timers
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Profile ID: LFUS-PAI-P-1178345

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