DIFF Subgroup
G09B 19/02 Counting; Calculating (abacus G06C1/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Counting; Calculating
CPC: Counting; Calculating (abacus G06C1/00)
Full Title
Full titles differ between systems:
IPC:
Teaching not covered by other main groups of this subclass > Counting; Calculating
CPC:
Teaching not covered by other main groups of this subclass (teaching or practice apparatus for gun-aiming or gun-laying F41G3/26) > Counting; Calculating (abacus G06C1/00)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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