4. Lubrication
  5. Safety alarm or indicating means

Robert A. Van Fossen

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Compact operator for gas control valves

Automatic temperature and humidity regulation – Motors – Relay
Patent

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Differential pressure transducer

Lubrication – Safety alarm or indicating means
Patent

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Float switch with snap action member

Electricity: circuit makers and breakers – Float – Float and pressure
Patent

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Magnetically actuated proximity flow switch

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

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Reversing valve construction and piston head assembly therefor a

Fluid handling – Systems – Multi-way valve unit
Patent

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Profile ID: LFUS-PAI-P-279386

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