US PATENT SUBCLASS 14 / 42
.~ Lift

Current as of: June, 1999
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14 /   HD   BRIDGES

31  DF  DRAW {10}
42.~ Lift

DEFINITION

Classification: 14/42

(under subclass 31) Drawbridges moving vertically (either up or down from normal position) with usually no horizontal motion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52, 58+ and 66+, for vertically sliding gates.

71.1+, for one-end-attached gangways.

SEE OR SEARCH CLASS

405, Hydraulic and Earth Engineering, 3, for lift-type drydocks.