B31D 3/0207 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B31D 3/0207

Full Title

Making articles of cellular structure, e.g. insulating board > honeycombed structures

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.