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RU2488719C1
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One-stage hydraulic booster with flow rate electric feedback
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RU2489607C1
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Two-stage electrohydraulic amplifier with electric flow feedback
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RU2467215C1
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Three-stage electrohydraulic amplifier with electric flow feedback
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RU2362055C1
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Flat hydraulic control valve
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RU2361124C1
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Flat hydraulic control valve
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RU2361123C2
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Electric hydraulic follower drive of throttle control with double-cascade electric hydraulic power amplifier
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RU2361121C2
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One-stage electrohydraulic power amplifier with two-sided hydraulic control spool valve
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RU2361120C2
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One-stage electrohydraulic power amplifier with flat spool hydraulic control valve
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RU2361119C2
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Two-stage electrohydraulic feed back power amplifier
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RU2361122C2
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Throttling control electrohydraulic servo drive incorporating one-stage electrohydraulic power amplifier
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RU2346187C2
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Three-stage electrohydraulic power amplifier
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