(under subclass 188.2) Device in which the means for adjustment of the device up or down or means to compensate for surface unevenness or irregularity includes means acting without manual intervention to return the device to a desired position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
182.1+, for an adjustable head for an article support wherein the adjustment is secured by a ball and socket joint and includes a weight, counterbalance or other means to automatically level the support.
