4. Communications: electrical
  5. Systems
  6. Call station

Douglas I. Fales

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Closed loop carburetor air-fuel ratio control

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent

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Fluid level sensor

Measuring and testing – Liquid level or depth gauge – Hydrostatic pressure type
Patent

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Fuel pump system

Internal-combustion engines – Charge forming device – With fuel pump
Patent

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Solid state thermistor switch

Communications: electrical – Systems – Call station
Patent

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Two-stage hydraulic piston pump

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Profile ID: LFUS-PAI-P-451047

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