IPC Subgroup
C03B 27/012 by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
Introduced: January 1990
Last revised: January 2006
Full Title
Tempering glass products > by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- GLASS; MINERAL OR SLAG WOOL
- Subclass:
- MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL