B23F 21/223 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B23F 21/223

Full Title

Tools specially adapted for use in machines for manufacturing gear teeth > Milling tools > Face-mills for longitudinally-curved gear teeth

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.