(under the class definition) Apparatus in which a means which is driven by either a motor or a ground-engaging traction member is provided to position a portion of said apparatus relative to its supporting frame, said means being selectively actuated in response to an operator actuated control to move said portion from one position of adjustment to another.
SEE OR SEARCH CLASS
172, Earth Working,
663+, and the subclasses there noted for an earth-working apparatus with a power means to shift a part.
