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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A61G1/0206
characterised by the number of supporting wheels if stretcher is extended
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A61G1/0212
2 pairs having wheels within a pair on the same position in longitudinal direction, e.g. on the same axis
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