Repeatedly-usable boards or tablets for writing or drawing; Writing or drawing-underlay, e.g. blotting pads; Drawing-boards; Straightedges; Circular curve-drawing or like instruments; Non-circular-curve-drawing instruments; Means to prevent slippage; Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for; Supports for attachment to hands or arms for facilitating writing or drawing; Blotters; Erasers, rubbers, or erasing devices; Holders therefor; Blackboard or slate-cleaning devices; Sharpeners for pencils or leads; Ink receptacles; Ink stands.
