DIFF Subgroup
B29C 49/42 Component parts, details or accessories; Auxiliary operations
Introduced: January 1985
Full Title
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor > Component parts, details or accessories; Auxiliary operations
CPC subdivides this area 3x more granularly than IPC with 21 additional codes.
21 codes are CPC-only extensions.
IPC defines codes here since 1985.
Child Classifications
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