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PCE
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DIFF Subgroup
A24B 15/20

Biochemical treatment

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form > Treatment of tobacco products or tobacco substitutes > Biochemical treatment

CPC:

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form (A24B3/00 takes precedence) > Treatment of tobacco products or tobacco substitutes > Biochemical treatment

No child classifications to compare. This is a leaf node in both IPC and CPC.