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US3245427A
|
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Operator apparatus
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US3148553A
|
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Valve operators
|
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US2971400A
|
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Valve operating mechanism
|
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FR1241960A
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Valve with elastic seals
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GB865943A
|
|
Improvements in or relating to valves for controlling fluid flow
|
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US2978221A
|
|
Resiliently seated valves and sealing structures therefor
|
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US2970805A
|
|
Valves having resilient seals
|
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GB836947A
|
|
Valve operating mechanism
|
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US2942495A
|
|
Valve operating mechanism
|
|
US2845814A
|
|
Valve operator
|
|
US2855940A
|
|
Valve operating methods
|
|
US2864401A
|
|
Valve structure
|
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US2823007A
|
|
Valve constructions
|
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GB752396A
|
|
Methods for manufacturing high pressure vessels
|
|
GB749932A
|
|
Gate valve for high pressure abrasive carrying fluid
|
|
GB767435A
|
|
A method of providing a wear resistant surface upon a relatively softer metallic member
|
|
US2752669A
|
|
Methods for manufacturing high pressure vessels
|
|
US3071343A
|
|
Valve for high pressure abrasive carrying fluids
|
|
US2903564A
|
|
Method of providing a wear resistant surface
|
|
GB739491A
|
|
Improvements in or relating to fluid sealing structures and gaskets therefor
|
