4. Electricity: circuit makers and breakers
  5. Fluid pressure
  6. Flow-responsive type

Donald M. Berlin, Jr.

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Calibration mechanism for a pressure switch

Electricity: circuit makers and breakers – Fluid pressure – Flow-responsive type
Patent

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Cam actuated butterfly valve

Valves and valve actuation – Mechanical movement actuator – Cam
Patent

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Lamp life extender

Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Flashers
Patent

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Profile ID: LFUS-PAI-P-308692

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