B23K 33/004 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B23K 33/004

Full Title

Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby

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.