The ornamental design for a swivelableceilinghook, as shown and described.
FIG. 1 shows a left side view of a swivelable ceiling hook as attached to a separable base support element;
FIG. 2 shows a left end view of the swivelable ceiling hook of FIG. 1;
FIG. 3 shows a right side view of the swivelable ceiling hook of FIG. 1;
FIG. 4 shows a top view of the swivelable ceiling hook of FIG. 1;
FIG. 5 shows a right end view of the swivelable ceiling hook of FIG. 1;
FIG. 6 shows a bottom view of the swivelable ceiling hook of FIG. 1;
FIG. 7 shows a rear right side perspective view of the swivelable ceiling hook in an upright position; and,
FIG. 8 shows a perspective view of the swivelable ceiling hook, with the dashed line showing removal and/or insertion of the separable base support element.
The broken lines represent the separable base support of the swivelable ceiling hook and form no part of the claim.