(under subclass 6) Processes in which the solid agent that treats the work is in particulate or comminuted form, such as pieces of sponge balls, absorbent powders, etc.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning,
95+, for shotting apparatus, subclasses 3.5, 302 and 320 for the type of particulate material application there provided.
451, Abrading, particularly
29+, for a process of abrading using a shield, subclasses 32+ for a process of tumbling to abrade, and subclasses 36+ for a process of abrading using a fluent abradant. 502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making,
