(under subclass 157) Device wherein means are provided to additionally move or permit movement of the support surface in a direction at right angles to the vertical movement, or in a direction which is a resultant of the two directions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
393+, for a similar device additionally tiltable.
SEE OR SEARCH CLASS
297, Chairs and Seats,
344.13+, for a seat comprising a bottom and back movable as a unit both vertically and horizontally.
