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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9/00
Medicinal preparations characterised by special physical form
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A61K9/02
Suppositories; Bougies; Bases therefor;; Ovules
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A61K9/025
characterised by shape or structure, e.g. hollow layered, coated
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