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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39/00
Medicinal preparations containing antigens or antibodies
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A61K39/215
Coronaviridae, e.g. avian infectious bronchitis virus
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A61K39/225
Porcine transmissible gastroenteritis virus
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