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The ornamental design for a sofa, substantially as shown. |
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FIG. 1 is a perspective view of a first embodiment of a sofa illustrating the present invention;
FIG. 2 is a perspective view of the sofa shown in FIG. 1 viewed from the back thereof;
FIG. 3 is an end elevational view of the sofa illustrated in FIG. 1;
FIG. 4 is a view similar FIG. 1 of another embodiment of a sofa incorporating the present invention;
FIG. 5 is a perspective view of the sofa shown in FIG. 4 viewed from the back; and
FIG. 6 is an end elevational view of the sofa shown in FIGS. 4 and 5.
Corson, Lee A., Corson, Robert S.
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