DIFF Subgroup
B31B 70/14 Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B70/83)
Introduced: January 2017
Title
Titles differ between systems:
IPC: Cutting, e.g. perforating, punching, slitting or trimming
CPC: Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B70/83)
Full Title
Full titles differ between systems:
IPC:
Making flexible containers, e.g. envelopes or bags > Cutting, e.g. perforating, punching, slitting or trimming
CPC:
Making flexible containers, e.g. envelopes or bags > Cutting, e.g. perforating, punching, slitting or trimming (cutting window openings B31B70/83)
CPC subdivides this area 3x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
IPC defines codes here since 2017.
Child Classifications
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