DIFF Subgroup
B23F 21/02 Grinding discs; Grinding worms (truing grinding tools B24B; grinding tools in general B24D)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Grinding discs; Grinding worms
CPC: Grinding discs; Grinding worms (truing grinding tools B24B; grinding tools in general B24D)
Full Title
Full titles differ between systems:
IPC:
Tools specially adapted for use in machines for manufacturing gear teeth > Grinding discs; Grinding worms
CPC:
Tools specially adapted for use in machines for manufacturing gear teeth > Grinding discs; Grinding worms (truing grinding tools B24B; grinding tools in general B24D)
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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