4. Fluid sprinkling, spraying, and diffusing
  5. Flow deflecting or rotation controlling means
  6. Deflector and terminal flow element

Grinnell Corporation

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Article tagging apparatus and method

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent

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Automatic on-off fire protection sprinkler

Fire extinguishers – Sprinkler heads – Shut off valve
Patent

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Automatic water supply shutoff valve

Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Reexamination Certificate

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Check valve and backflow preventer

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

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Check valve and backflow preventer

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

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