4. Fire extinguishers
  5. Sprinkler heads
  6. Collapsible strut

George S. Polan

Inventor

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Ceiling cover for pendent style sprinklers

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Dispersal
Patent

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Ceiling sprinkler

Fire extinguishers – Sprinkler heads – Lever
Patent

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Clapper seal for dry pipe valve

Fluid handling – Line condition change responsive valves – Direct response valves
Patent

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Concealed automatic sprinkler

Fire extinguishers – Sprinkler heads
Patent

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Concealed pendent fire protection sprinkler with drop-down...

Fire extinguishers – Sprinkler heads
Reexamination Certificate

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Profile ID: LFUS-PAI-P-38058

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