Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61K
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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A61K6/15
Compositions characterised by their physical properties
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A61K6/18
causing dental retraction, e.g. compositions for widening the sulcus for making dental impressions or removing teeth
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