US PATENT SUBCLASS 248 / 650
.~.~.~ Screw

Current as of: June, 1999
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248 /   HD   SUPPORTS

637  DF  MACHINERY SUPPORT {15}
646  DF  .~ Movable machine {10}
649  DF  .~.~ By independently adjustable legs or feet {1}
650.~.~.~ Screw

DEFINITION

Classification: 248/650

Screw:

(under subclass 649) Structure wherein the adjustment of the leg is effected by the action of one member threadably engaged with another.

(1) Note. The threaded member may be the leg itself or may be a separate member which causes movement of the leg.

SEE OR SEARCH THIS CLASS, SUBCLASS:

188.4, for a screw threaded elevating or levelling device not restricted to use with a machine.