DIFF Subgroup
G01N 33/28 Oils (edible oils or edible fats G01N33/03)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Oils
CPC: Oils (edible oils or edible fats G01N33/03)
Full Title
Full titles differ between systems:
IPC:
Investigating or analysing materials by specific methods not covered by groups > Oils; Viscous liquids; Paints; Inks > Oils
CPC:
Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 > Oils; Viscous liquids; Paints; Inks (G01N33/22 takes precedence) > Oils (edible oils or edible fats G01N33/03)
CPC subdivides this area 9x more granularly than IPC with 8 additional codes.
8 codes are CPC-only extensions.
Child Classifications
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