In this subclass, the following term is used with the meaning indicated: [4]
"polishing" means the smoothing of a surface, i.e. a surface improvement but no improvement of the dimensional accuracy as would occur in a "grinding" operation. [4]
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
B24C
Note(s)
This subclass covers:
the use of a blast of any particles or pellets dispersed in air, gas, or liquid for the treatment of surfaces, the particles usually being of abrasive material;
the equivalent use of a jet of particles or pellets projected or energised by means other than a stream of air.
In this subclass, the following terms are used with the meanings indicated:
"abrasive" covers any material used in the manner mentioned in Note (1) above;
"blast" covers any equivalent jet of material mentioned in Note (1) above.
This subclass covers grinding tools for working on any material.
Tools for grinding, buffing or sharpening, specially designed for a particular purpose, which purpose is provided for in a single other place, are classified in that place, e.g. Fulltext... Hierarchy... Expanded...B23F 21/02. [4]