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Hydraulic ElevatorPower elevator where the energy is applied, by means of a liqu...
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Hydraulic ElevatorA power elevator where the energy is applied, by means of a liquid under pressure, in a cylinder equipped with a plunger or piston.
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Hydraulic ElevatorA power elevator where the energy is applied, by means of a liquid under pressure, in a cylinder equipped with a plunger or piston.
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