CPC Subgroup
C03C 25/44 Carbon, e.g. graphite
Full Title
Surface treatment of fibres or filaments made from glass, minerals or slags > Coating > Coatings containing inorganic materials > Carbon, e.g. graphite
C03C 25/44 Surface treatment of fibres or filaments made from glass, minerals or slags > Coating > Coatings containing inorganic materials > Carbon, e.g. graphite