Letter opener

The ornamental design for a letter opener, as shown.

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

FIG. 2 is an end elevational view thereof; and

FIG. 3 is a side elevational view of the letter opener.

The top of the letter opener is substantially planar.

Patent	Priority	Assignee	Title
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D852005,	Oct 09 2017	RAIL HOLDINGS, LLC	Knife

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Apr 03 1978		Ketcham & McDougall, Inc.	(assignment on the face of the patent)

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