Pen

The ornamental design for a pen, as shown.

FIG. 1 is a front-left-top perspective view of a pen, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
D583413,	Jun 06 2007	Beifa Group Co., Ltd.; BEIFA GROUP CO , LTD	Pen
D681114,	Jun 13 2011		Pen

Patent	Priority	Assignee	Title
1395793,
5558452,	Oct 29 1992	Pentel Kabushiki Kaisha	Holder tube for writing instrument
D430210,	May 19 1999	Pentel Kabushiki Kaisha	Mechanical pencil
D451138,	Jan 25 2001	MY IMAGINATION LLC	Writing instrument with illumination recess
D463821,	Jun 22 2001	Mitsubishi Pencil Co., Ltd.	Ball-point pen
D466156,	Dec 13 2001	Pentel Kabushiki Kaisha	Writing instrument

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