C04B 37/023 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

C04B 37/023

Full Title

Joining burned ceramic articles with other burned ceramic articles or other articles by heating > with metallic articles

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.