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Actuator control using slipping clutches opposing eachother
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Securing device
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Direct drive valve
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Hydraulic control system
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Method and systems for controlling a movable member
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Controlling a movable member
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Seal member
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Fluid valves maintenance of oil rig legs
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Fluid valves
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Hydraulic control system
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US4630495A
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Variable ratio power transmission means
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Direct drive DC motor for servo actuator
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Electric motors
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WO8202619A1
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Electric motors
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Servo systems having at least two servo mechanisms
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Improvements relating to hydraulic filters
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Improvements relating to fluid filters
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Improvements relating to hydraulic servo mechanisms
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Improvements relating to hydraulic power control systems for aircraft
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Improvements relating to two-stage electro-hydraulic control valves
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