(under subclass 1) Apparatus for or method of performing the operation of ... combined with condensing, compacting, smoothing, or polishing the surface of the workpiece usually by rubbing the workpiece with a smooth tool having a surface of greater hardness than that of the workpiece wherein forming and condensing, etc., are performed at the same time.
SEE OR SEARCH CLASS
29, Metal Working,
90.01+, for gear cutting combined with burnishing wherein the operations can be performed independently.
