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The ornamental design for a traction ramp device, as shown. |
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FIG. 1 is a top plan view of the traction ramp device of the present invention;
FIG. 2 is a bottom plan view of the traction ramp device of FIG. 1;
FIG. 3 is a front elevational view of a traction ramp device thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof; and,
FIG. 6 is a right side elevational view thereof.
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