DIFF Subgroup
C09F 1/02 Purification
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Obtaining, purification, or chemical modification of natural resins, e.g. oleo-resins > Purification
CPC:
Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins > Purification
No child classifications to compare. This is a leaf node in both IPC and CPC.