Patent classifications
C
CHEMISTRY; METALLURGY
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C03
GLASS; MINERAL OR SLAG WOOL
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C03C
CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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C03C3/32
Non-oxide glass compositions, e.g. binary or ternary halides, sulfides or nitrides of germanium, selenium or tellurium
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C03C3/321
Chalcogenide glasses, e.g. containing S, Se, Te
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