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

John W. Fenske

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Concealed sprinkler head

Fire extinguishers – Sprinkler heads – Lever
Patent

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Concealed sprinkler head

Fire extinguishers – Sprinkler heads – Lever
Patent

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Fire protection sprinkler head with spaced zones for mounting a

Fire extinguishers – Sprinkler heads
Patent

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Liquid flow indicator

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

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Sprinkler head

Fire extinguishers – Sprinkler heads – Collapsible strut
Patent

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Profile ID: LFUS-PAI-P-427565

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