DIFF Subgroup
C21D 8/0294 involving a localised treatment
Introduced: January 2026
Full Title
Full titles differ between systems:
IPC:
Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment > during manufacturing of plates or strips > involving a localised treatment
CPC:
Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment (hardening articles or materials formed by forging or rolling with no further heating beyond that required for the formation C21D1/02) > during manufacturing of plates or strips (C21D8/12 takes precedence) > involving a localised treatment
No child classifications to compare. This is a leaf node in both IPC and CPC.