CPC Subgroup
C03C 3/12 Silica-free oxide glass compositions
Full Title
Glass compositions > Silica-free oxide glass compositions
7 direct subcodes
Child Classifications
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- C03C 3/14 containing boron
- C03C 3/16 containing phosphorus
- C03C 3/23 containing halogen and at least one oxide, e.g. oxide of boron
- C03C 3/253 containing germanium