Sofa

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

FIG. 1 is a front perspective view of a sofa showing my new design;

FIG. 2 is a front perspective view of a modified form thereof; and

FIG. 3 is a rear perspective view of the sofa shown in FIG. 1.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Feb 17 1978		Trend Line Furniture Corporation	(assignment on the face of the patent)

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