4. Metal working
  5. Method of mechanical manufacture
  6. Valve or choke making

Donald S. N. Bray

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Fluid control valve

Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent

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Method of making a fluid control valve

Metal working – Method of mechanical manufacture – Valve or choke making
Patent

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Profile ID: LFUS-PAI-P-1358351

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