Writing instrument with user-controlled ink color
Writing or marking instrument with attached stapler
Writing pen that calculates body mass index
Writing system and ink pen having time-dependent...
Writing tool
Writing tool including openable decorative article at shaft end
Writing utensil and credit information storage combination
Writing utensil housing a supply of paper
Writing utensil with built-in stamp and stamp pad
Writing utensil with integral stamping equipment
Writing utensil with notepaper