DIFF Subgroup
B29C 57/04 using mechanical means
Introduced: January 1985
Full Title
Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor > Belling or enlarging, e.g. combined with forming a groove > using mechanical means
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1985.
Child Classifications
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