DIFF Subgroup
H01M 6/42 Grouping of primary cells into batteries (H01M6/40 takes precedence)
Introduced: July 1974
Title
Titles differ between systems:
IPC: Grouping of primary cells into batteries
CPC: Grouping of primary cells into batteries (H01M6/40 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Primary cells; Manufacture thereof > Grouping of primary cells into batteries
CPC:
Primary cells; Manufacture thereof > Grouping of primary cells into batteries (H01M6/40 takes precedence)
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
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