DIFF Subgroup
B22C 9/10 Cores; Manufacture or installation of cores
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Moulds or cores; Moulding processes > Cores; Manufacture or installation of cores
CPC:
Moulds or cores (uniquely adapted to particular casting processes B22D); Moulding processes > Cores; Manufacture or installation of cores
CPC subdivides this area 5x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions, 1 exist only in IPC.
IPC defines codes here since 1995.
Child Classifications
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