Pen

The ornamental design for a pen, as shown and described.

FIG. 1 is a front elevational view of a pen showing my new design, with both sides and the rear being identical;

FIG. 2 is a top plan view thereof; and

FIG. 3 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
D326682,	Aug 28 1990	Tombow Pencil Co., Ltd.	Marking pen
D335140,	Dec 27 1990		Writing instrument
D340947,	Aug 13 1992	C & T Products Corp.	Marking instrument
D349243,	Apr 06 1992		Bottle watch
D393485,	Dec 13 1996	Berol Corporation	Writing instrument
D413926,	Nov 20 1998	Berol Corporation	Mechanical pencil
D443302,	Jul 25 2000	Klio-Eterna Schreibgerate GmbH & Co.KG	Pens
D483149,	Oct 03 2001		Bottle-shaped liquid and lotion applicator

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