The ornamental design for a protectivedevice for an edge of a glassobject, as shown and described.
FIG. 1 is a perspective view of a protective device for an edge of a glass object;
FIG. 2 is a left side view of the protective device for an edge of a glass object of FIG. 1; the right side being a mirror image thereof;
FIG. 3 is a top view of the protective device for an edge of a glass object of FIG. 1;
FIG. 4 is a bottom view of the protective device for an edge of a glass object of FIG. 1;
FIG. 5 is a front view of the protective device for an edge of a glass object of FIG. 1;
FIG. 6 is a back view of the protective device for an edge of a glass object of FIG. 1; and,
FIG. 7 is a bottom side perspective view of the protective device for an edge of a glass object of FIG. 1.
The claimed design is shown with a symbolic break in its length. The appearance of any portion of the protective device for an edge of a glass object between the broken lines forms no part of the claim. The broken lines in the drawings depict the bounds of the claimed design and form no part of the claimed design.