CPC Subgroup
C03B 19/101 Full Title
Other methods of shaping glass (manufacture or treatment of flakes, fibres or filaments from softened glass, minerals or slags C03B37/00) > Forming beads
C03B 19/101 Other methods of shaping glass (manufacture or treatment of flakes, fibres or filaments from softened glass, minerals or slags C03B37/00) > Forming beads