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The ornamental design for an electric-discharge processing machine, as shown and described. |
FIG. 1 is a top, front and left side perspective view of an electric-discharge processing machine showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a rear elevational view;
FIG. 4 is a top plan view;
FIG. 5 is a left side elevational view; and,
FIG. 6 is a right side elevational view thereof.
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