|
GB1210401A
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Improvements in and relating to butterfly valves
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Improvements in and relating to hydraulic valves
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Improvements in and relating to means for holding fluid-control valves against movement
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Improvements in and relating to butterfly valves
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Improvements in and relating to valves for controlling fluid flow
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Improvements in and relating to rotary spherical type valves for controlling fluid flow
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Improvements in butterfly valves
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US3100104A
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Butterfly valve having a sealing surface mounted for axial movement
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Improvements in and relating to butterfly valves
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Improvements in and relating to butterfly valves
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Improvements in and relating to the mounting and control of needles in pelton impulse hydraulic turbines
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Improvements in butterfly valves
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Improvements in hydraulic turbines
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Improvements in branched steel pipes
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Improvements relating to rotary valves for use with water pipes or mains
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CA768021A
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Hydraulic valves
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CA655198A
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Butterfly valves
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CA646407A
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Butterfly valves
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