B21D 15/105 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

B21D 15/105

Full Title

Corrugating tubes (wrinkle-bending using mandrels or the like B21D9/14) > transversely, e.g. helically > by applying fluid pressure

This code exists only in CPC.

Diff view requires codes present in both systems.