Patent classifications
A
HUMAN NECESSITIES
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A47
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
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A47L
DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
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11/00
Machines for cleaning floors, carpets, furniture, walls, or wall coverings
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A47L11/34
Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
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