The ornamental design for scraper, as shown and described.
FIG. 1 is a perspective view of the scraper of our invention;
FIG. 2 is a front elevational view;
FIG. 3 is a rear elevational view;
FIG. 4 is a side view, the opposite side being identical;
FIG. 5 is an end view taken along lines 5—5 of FIG. 2, and,
FIG. 6 is an end view taken along lines 6—6 of FIG. 2.
The broken lines shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design.