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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21/00
Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
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C03C21/001
in liquid phase, e.g. molten salts, solutions
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C03C21/002
to perform ion-exchange between alkali ions
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