US PATENT SUBCLASS 14 / 71.7
.~.~.~ Hydraulic powered
Current as of:
June, 1999
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14 /
HD
BRIDGES
69.5
DF
GANGWAY, RAMP, OR DOCK LEVELER
{3}
71.1
DF
.~ Attached {1}
71.3
DF
.~.~ With lift means {2}
71.7
.~.~.~ Hydraulic powered
DEFINITION
Classification: 14/71.7
(under subclass 71.3) Bridging structure wherein the repositioning means includes a fluid actuated motor as a prime mover.
SEE OR SEARCH CLASS
60, Power Plants, appropriate subclasses for a hydraulic system.
91, Motors: Expansible Chamber Type, appropriate subclasses for structure of a hydraulic or pneumatic component.
137, Fluid Handling, appropriate subclasses for various components of a hydraulic system (e.g., check valves).
251, Valves and Valve Actuation, appropriate subclasses for specific valve structure.