DIFF Subgroup
B31B 70/26 Folding sheets, blanks or webs
Introduced: January 2017
Full Title
Making flexible containers, e.g. envelopes or bags > Folding sheets, blanks or webs
CPC subdivides this area 4x more granularly than IPC with 6 additional codes.
6 codes are CPC-only extensions.
IPC defines codes here since 2017.
Child Classifications
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- B31B 70/36 by continuously feeding them to stationary members, e.g. plates, ploughs or cores since 2017 IPC+CPC Available in IPC and CPC
- B31B 70/52 by reciprocating or oscillating members other than plungers and dies, e.g. by fingers since 2017 IPC+CPC Available in IPC and CPC