| http://www.w3.org/ns/prov#value | - Typical locking devices for hydraulic actuators of the prior art include such structures as a pin or tongue which is inserted through a slot provided in the piston rod of the hydraulic actuator, an eccentric ring positioned around the actuator piston rod which, upon rotation, grips the rod to preclude movement, a latching dog which engages threads or grooves in the piston rod, a U-shaped member wh
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