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A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
A24D3/06—Use of materials for tobacco smoke filters
A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
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FR327508D1902-12-191902-12-19Procédé pour supprimer ou atténuer l'action nuisible de la fumée du tabac
ExpiredFR327508A
(fr)