4. Fire extinguishers
  5. Sprinkler heads

Grinnell Fire Protection Systems Company, Inc.

Corporate Assignee

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Deflector with converging lower tines for horizontal sprinkler

Fire extinguishers – Sprinkler heads
Patent

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Deflector with surface for circumferentially redistributing flui

Fire extinguishers – Sprinkler heads
Patent

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Diaphragm actuated sprinkler head

Fire extinguishers – Sprinkler heads
Patent

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Dry pipe valve accelerator

Fire extinguishers – Automatic valves – Pressure controlled
Patent

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Finish plate assembly for a sprinkler head having interengaging

Fire extinguishers – Mount – cabinet or guard
Patent

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