4. Animal husbandry
  5. Feeding device
  6. Timer-controlled

Isaac P. Espy

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Atomic standard with reduced size and weight

Oscillators – Molecular or particle resonant type
Patent

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Bark tool and connection

Woodworking – Bark rosser – Tree climber
Patent

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Digital clock

Measuring – testing – or signalling instruments – Clock or clock case – Changeable exhibitor – e.g. – digital type
Patent

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Floating fish feeder

Animal husbandry – Feeding device – Timer-controlled
Patent

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Magnetic state selector

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent

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Profile ID: LFUS-PAI-P-104355

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