DIFF Subgroup
B21D 28/06 Making more than one part out of the same blank; Scrapless working
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Shaping by press-cutting; Perforating > Punching blanks or articles with or without obtaining scrap; Notching > Making more than one part out of the same blank; Scrapless working
CPC:
Shaping by press-cutting; Perforating > Punching blanks or articles with or without obtaining scrap (cutting nails or pins from strips or sheet material B21G3/26); Notching > Making more than one part out of the same blank; Scrapless working
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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