B23F 9/082 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B23F 9/082

Full Title

Making gears having teeth curved in their longitudinal direction > by milling, e.g. with helicoidal hob

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.