CPC Subgroup
G01N 33/42 Road-making materials (G01N33/38 takes precedence)
Full Title
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 > Road-making materials (G01N33/38 takes precedence)
G01N 33/42 Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 > Road-making materials (G01N33/38 takes precedence)