4. Oscillators
  5. Solid state active element oscillator
  6. Significant distributed parameter resonator

Alfred E. Hall

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Apparatus for detecting when birds are in a birdhouse

Animal husbandry – Bed or rest
Patent

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Automation system for a mixing and dispensing apparatus

Coating apparatus – Control means responsive to a randomly occurring sensed... – Responsive to condition of coating material
Patent

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Card deck

Amusement devices: games – Card or tile games – cards or tiles therefor
Patent

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Card game method

Amusement devices: games – Card or tile games – cards or tiles therefor
Patent

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Coupled resonator phase shift oscillator

Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Patent

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