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The ornamental design for a spot welder, as shown and described. |
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FIG. 1 is a top, front and left side perspective view of a spot welder showing my new design;
FIG. 2 is a top, rear and right side perspective view;
FIG. 3 is a left side elevational view;
FIG. 4 is a right side elevational view;
FIG. 5 is a top plan view;
FIG. 6 is a bottom plan view;
FIG. 7 is a front elevational view; and,
FIG. 8 is a rear elevational view thereof.
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