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A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
A47C—CHAIRS; SOFAS; BEDS
A47C17/00—Sofas; Couches; Beds
A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
A47C17/17—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat
A47C17/175—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat with tilting or lifting seat-back-rest pivot