IPC Subgroup
C03B 37/012 Manufacture of preforms for drawing fibres or filaments
Introduced: January 1985
Last revised: January 2006
Full Title
Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags > Manufacture of glass fibres or filaments > Manufacture of preforms for drawing fibres or filaments
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
1 direct subcode
Child Classifications
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- C03B 37/014 made entirely or partially by chemical means