The ornamental design for a securementdevice, as shown and described.
FIG. 1 is a front right perspective view of a securement device showing our new design;
FIG. 2 is a rear right perspective view of the design shown in FIG. 1;
FIG. 3 is a front view of the design shown in FIG. 1;
FIG. 4 is a rear view of the design shown in FIG. 1;
FIG. 5 is a right side view of the design shown in FIG. 1;
FIG. 6 is a left side view of the design shown in FIG. 1;
FIG. 7 is a front view of the design shown in FIG. 1; and,
FIG. 8 is a bottom view of the design shown in FIG. 1.
The broken lines shown in the figures are included for the purpose of illustrating portions of the securement device and form no part of the claimed design. The dash-dot-dash broken lines in FIGS. 1-4 illustrate the boundary of the claimed design which forms no part thereof.