B23F 13/003 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B23F 13/003

Full Title

Making worms by methods essentially requiring the use of machines of the gear-cutting type (making screw-thread B23G)

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.