IPC Subgroup
A24B 15/28 by chemical substances
Introduced: January 1980
Last revised: January 2006
Full Title
Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form > Treatment of tobacco products or tobacco substitutes > by chemical substances
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- Subclass:
- MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
2 direct subcodes
Child Classifications
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- A24B 15/3 by organic substances
- A24B 15/42 by organic and inorganic substances