IPC Subgroup
C03B 21/04 by punching out
Introduced: September 1968
Last revised: January 2006
Full Title
Severing glass sheets, tubes, or rods while still plastic > by punching out
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