Aquarelles; Clipboards; Address plates for addressing machines; Balls for ball-point pens; Blank lesson plan books; Bottle envelopes of cardboard or paper; Document laminators for office use; Inking ribbons for computer printers; Inking sheets for document reproducing machines; Paper bags for packaging; Paper for radiograms; Self-adhesive tapes for stationery or household purposes; Staplers being office requisites; Tablemats of paper; Writing board erasers