IPC Subgroup
C21D 7/04 of the surface
Introduced: September 1968
Last revised: January 2006
Full Title
Modifying the physical properties of iron or steel by deformation > by cold working > of the surface
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY OF IRON
- Subclass:
- MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
Related Keywords
PLANISHING metal
2 direct subcodes
Child Classifications
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