B31B 70/28 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B31B 70/28

Full Title

Making flexible containers, e.g. envelopes or bags > Folding sheets, blanks or webs

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.