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ces moyens anti-retour peuvent comporter une patte flexible 36 supportant une dent anti-retour 37 coopérant avec la denture 19.
these non-return means can include a flexible tab 36 bearing a non-return tooth 37 cooperating with the teeth 19 .
avantageusement, lesdits moyens anti-retour comporte une patte flexible comportant une projection anti-retour coopérant avec ladite denture.
advantageously, said anti-return means comprises a flexible tab including an anti-return projection that co-operates with said set of teeth.
avantageusement, ladite patte flexible est solidaire d'une bague entourant ladite denture, ladite patte flexible venant coopérer avec ladite denture chaque fois qu'une dose est distribuée.
advantageously, said flexible lug is joined to a ring surrounding said cogging, said flexible lug coming to cooperate with said cogging whenever a dose is dispensed.