4. Fluid handling
  5. Line condition change responsive valves
  6. Direct response valves

Marshall U. Hines

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Butterfly valve apparatus and method

Fluid handling – Processes
Patent

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Butterfly valve apparatus and method

Fluid handling – Processes
Patent

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Butterfly valve apparatus and method

Fluid handling – Processes
Patent

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Butterfly valve method and apparatus

Fluid handling – Processes
Patent

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Butterfly valve with intra-shaft actuator means

Valves and valve actuation – Fluid actuated or retarded – Plural operations
Patent

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