4. Fluid handling
  5. Processes

Keystone International Holdings Corp.

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Adjustable magnet carrier for a valve position indicator

Fluid handling – With indicator – register – recorder – alarm or inspection means – Position or extent of motion indicator
Patent

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Apparatus for a disc-stem connection

Valves and valve actuation – Rotary valves – Butterfly
Patent

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Apparatus for inserting valve seats in valve bodies

Metal working – Means to assemble or disassemble – To apply or remove a resilient article
Patent

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Automatic recirculation valve

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

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Automatic recirculation valve

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

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