|  | B |
SECTION B — PERFORMING OPERATIONS

SHAPING

|  | B24 |
GRINDING; POLISHING

|  | B24B |
MACHINES, DEVICES OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth Fulltext... Hierarchy... Expanded...B23F, of screw thread Fulltext... Hierarchy... Expanded...B23G 1/36; by electro-erosion Fulltext... Hierarchy... Expanded...B23P 1/00; abrasive or related blasting Fulltext... Hierarchy... Expanded...B24C; tools for grinding, buffing or sharpening Fulltext... Hierarchy... Expanded...B24D; grinding or polishing plastics Fulltext... Hierarchy... Expanded...B29C 17/12; electrolytic etching or polishing Fulltext... Hierarchy... Expanded...C25F 3/00; grinding arrangements for use on assembled railway tracks Fulltext... Hierarchy... Expanded...E01B 31/17); TRUING OF GRINDING STONES; FEEDING OF GRINDING AGENTS [2]

|  | B24C |
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL

|  | B24C |
Note(s) This sub-class 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. It also covers the equivalent use of a jet of particles or pellets projected or energised by other means than a stream of air. Accordingly the word "abrasive" is to be understood as covering any material used in the manner stated; the word "blast" is to be understood as covering any equivalent jet of material.

|  | B24D |
TOOLS FOR GRINDING, BUFFING OR SHARPENING (if specially designed for a particular purpose provided for in a single other class, that class takes precedence, e.g. Fulltext... Hierarchy... Expanded...B23F 21/02; polishing or abrasive compositions Fulltext... Hierarchy... Expanded...C09G, Fulltext... Hierarchy... Expanded...C09K 3/14)

|  | B24D |
Note(s) This sub-class covers grinding tools for working on any material.