DIFF Subgroup
G01N 33/40 Grinding-materials
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Investigating or analysing materials by specific methods not covered by groups > Grinding-materials
CPC:
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 > Grinding-materials
No child classifications to compare. This is a leaf node in both IPC and CPC.