DIFF Subgroup
B21D 11/20 Bending sheet metal, not otherwise provided for
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Bending not restricted to forms of material mentioned in only one of groups , ,; Bending not provided for in groups; Twisting > Bending sheet metal, not otherwise provided for
CPC:
Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00 (corrugating or bending into wave form B21D13/00, B21D15/00; flanging B21D19/00); Twisting > Bending sheet metal, not otherwise provided for
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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