(under subclass 419) Rotary cradles in which the pivotal axis of the cradle is movable rectilinearly and/or in an arcuate path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354+, as explained in subclass 419, and especially subclasses 364+ thereunder for a pivotable supporting means, which means has a vertically shiftable axis of pivot.
404+, for a portable emptying device combined with a portable material receiver.
