C CHEMISTRY; METALLURGY
C03 GLASS; MINERAL OR SLAG WOOL
C03B MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B33/00 Severing cooled glass
C03B33/02 Cutting or splitting sheet glass; or ribbons; Apparatus or machines therefor
C03B33/023 the sheet; or ribbon; being in a horizontal position
C03B33/0235 Ribbons