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The ornamental design for a safety lock for an electrical plug, as shown and described. |
FIG. 1 is a perspective view from the front of a safety lock for an electrical plug, showing my new design;
FIG. 2 is a perspective view from the rear thereof;
FIG. 3 is a top plan view thereof; the bottom view being similar;
FIG. 4 is a front elevational view thereof; and
FIG. 5 is a rear elevational view thereof.
Mitchell, Wayne T., Hamer, Merlin L.
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