Letter opener

The ornamental design for a letter opener, as shown and described.

FIG. 1 is a front elevational view of a letter opener showing my new design;

FIG. 2 is a right end elevational view thereof;

FIG. 3 is a left end elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a rear elevational view thereof.

Patent	Priority	Assignee	Title
D339214,	Jun 14 1991		Battery operated fingernail file
D505597,	Aug 11 2003		Knife with a rifle stock handle
D707715,	May 16 2013	FUNAI ELECTRIC CO , LTD	Optical disk player
D708230,	May 16 2013	FUNAI ELECTRIC CO , LTD	Optical disk player

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