Pen with illuminating function

Pen with paper dispenser

Pen with paper roll

Pen with push-button

Pen with retractable point

Pen with selective multi-color cores

Pen with self-contained illumination

Pen with slide plug and valve

Pen with variable penholder styles

Pen, writing unit and a device for holding a writing unit

Pen-and-electronic device assembly

Pen-and-electronic device assembly

Pen-like device incorporating a multi-colored printer

Pen-like dispenser for applying rust converting liquid

Pen-like eyeglass cleaner

Pen-like instrument for applying correction fluid

Pen-shaped liquid applicator

Pen-type device with combination lock

Pen-type vessel for nail polish

Pen/pencil apparatus having cosmetic application