Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61G
TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
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5/00
Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
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A61G5/0866
folding down backrest, e.g. where the backrest folds down onto the seat support
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