(under subclass 36) Method including plural grinding operations one of which is performed on a single workpiece by a fluent abradant and occurs either concurrently with, but over a separately defined work surface, or sequentially with another grinding operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31, for sequential abrading steps including use of a mask or stencil.
34, for plural abrading steps including one by tumbling.
57+, for other plural distinct abrading areas or steps.
