B23G 9/003 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B23G 9/003

Full Title

Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread

This code exists only in CPC.

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