The ornamental design for a clamp, as shown and described.
The file of this patent contains at least one drawing executed in color. Copies of this patent with color drawings will be provided by the United States Patent and Trademark Office upon request and payment of the necessary fee.
FIG. 1 is a top, front and right side perspective view of a clamp in the colors red, black and grey showing the new design;
FIG. 2 is a front elevational view of the design of FIG. 1 in the colors red, black and grey;
FIG. 3 is a right side elevational view of the design of FIG. 1 in the colors red, black and grey;
FIG. 4 is a rear elevational view of the design of FIG. 1 in the colors red, black and grey;
FIG. 5 is a left side elevational of the design of FIG. 1 in the colors red, black and grey;
FIG. 6 is a top plan view of the design of FIG. 1 in the colors red, black and grey; and,
FIG. 7 is a bottom plan view of the design of FIG. 1 in the colors red, black and grey.