(under subclass 81.01) Process or apparatus wherein the workpiece is contacted by an edged instrument to remove or scalp the scale from a surface thereof.
(1) Note. Placement in this subclass requires more than cutting away small pieces of scale from a surface with a sharpened blade or chisel which is classified in subclass 81.16.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning,
93.1, for a machine in which the sole cleaning instruments are scrapers.