CPC Main Group
A24D 3/00 Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
5 direct subcodes
Child Classifications
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- A24D 3/02 Manufacture of tobacco smoke filters
- A24D 3/04 Tobacco smoke filters characterised by their shape or structure
- A24D 3/06 Use of materials for tobacco smoke filters
- A24D 3/17 Filters specially adapted for simulated smoking devices
- A24D 3/18 Mouthpieces of cigars or cigarettes; Manufacture thereof (manufacture of tobacco smoke filters A24D3/02)