ELECTRICALLY OPERATED VACUUM CLEANERS [ AND FLOOR MACHINES ] AND PARTS THEREOF, SAID FLOOR MACHINES BEING USED FOR SANDING, CLEANING, WAXING, OILING, POLISHING, SCRUBBING, DRESSING AND REFINISHING FLOOORS AND FOR REMOVING PAINT AND VARNISH THEREFROM

CLEAR VISCOUS SOLUTIONS OR RESINS CONSISTING ESSENTIALLY OF AROMATIC SULPHONAMIDE REACTION PRODUCTS USED ALONE OR IN COMBINATION WITH OTHER MATERIALS TO FORM FILMS, THREADS, ARTIFICIAL SILK, LAMINATED GLASS, BINDING COMPOSITIONS, LACQUERS, VARNISHES, AND NATURAL-RESIN SUBSTITUTES