FIG. 1 is a bottom perspective view of a ceiling fan showing a first embodiment of our new design;
FIG. 2 is bottom plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom perspective view of a ceiling fan showing a second embodiment of our new design;
FIG. 9 is a bottom plan view thereof;
FIG. 10 is a front elevation view thereof;
FIG. 11 is a left side elevation view thereof;
FIG. 12 is a rear elevation view thereof;
FIG. 13 is a right side elevation view thereof;
FIG. 14 is a top plan view thereof;
FIG. 15 is a bottom perspective view of a ceiling fan showing a third embodiment of our new design;
FIG. 16 is a bottom plan view thereof;
FIG. 17 is a front elevation view thereof;
FIG. 18 is a left side elevation view thereof;
FIG. 19 is a rear elevation view thereof;
FIG. 20 is a right side elevation view thereof;
FIG. 21 is a top plan view thereof;
FIG. 22 is a bottom perspective view of a ceiling fan showing a fourth embodiment of our new design;
FIG. 23 is a bottom plan view thereof;
FIG. 24 is a front elevation view thereof;
FIG. 25 is a left side elevation view thereof;
FIG. 26 is a rear elevation view thereof;
FIG. 27 is a right side elevation view thereof; and,
FIG. 28 is a top plan view thereof.
The broken lines and the portions within are for the purposes of illustrating portions of the article that form no part of the claimed design.