IPC Subgroup
C22F 1/12 of lead or alloys based thereon
Introduced: September 1968
Last revised: January 2006
Full Title
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working > of lead or alloys based thereon
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- Subclass:
- CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS