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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A47L11/28
Floor-scrubbing machines, motor-driven
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