CPC Subgroup
C03C 25/54 Combinations of one or more coatings containing organic materials only with one or more coatings containing inorganic materials only
Full Title
Surface treatment of fibres or filaments made from glass, minerals or slags > Coating > with two or more coatings having different compositions > Combinations of one or more coatings containing organic materials only with one or more coatings containing inorganic materials only