4. Measuring and testing
  5. Barometer

Thomas M. Dauphinee

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Apparatus for measuring barometric pressure

Measuring and testing – Barometer
Patent

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Evaporation type barometer

Measuring and testing – Barometer
Patent

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Liquid conductivity measuring apparatus

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Liquid conductivity measuring circuit

Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent

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Salinometer

Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent

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Profile ID: LFUS-PAI-P-699618

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