Pen construction

Pen with double pen barrel

Pen with dual extension/retraction cartridges

Pen with retractable point

Pen with selective multi-color cores

Pencil

Push-out-type writing implement

Rotary bar-projecting mechanism for push-button implement

Twin-type stick-shaped material extending container

Two ended retractable writing instrument

Writing device with at least two writing elements

Writing device with multiple writing elements

Writing implement

Writing implement including an input stylus

Writing implement including an input stylus

Writing implement with coaxial alternately usable tips

Writing implement with side actuator

Writing implement with two retractable cartridges

Writing instrument

Writing instrument