US PATENT SUBCLASS 248 / 654
.~.~.~.~.~ Hydraulic or pneumatic

Current as of: June, 1999
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248 /   HD   SUPPORTS

637  DF  MACHINERY SUPPORT {15}
646  DF  .~ Movable machine {10}
651  DF  .~.~ Including operator or actuator {3}
652  DF  .~.~.~ For angular movement {1}
653  DF  .~.~.~.~ Extensible leg or strut {1}
654.~.~.~.~.~ Hydraulic or pneumatic

DEFINITION

Classification: 248/654

Hydraulic or pneumatic:

(under subclass 653) Structure wherein the length or angularity of the extensible member is varied by hydraulic or pneumatic means.