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The ornamental design for a ventilator, as shown and described. |
FIG. 1 is a top, left side and front perspective view of a ventilator, showing my new design wherein it is mounted on a roof;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof, the rear being a mirror image of that shown;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top, left side and front perspective view of a ventilator, showing a second embodiment of my new design wherein it is mounted on a wall;
FIG. 7 is a top plan view of FIG. 6, the bottom being a mirror image of that shown;
FIG. 8 is a front elevation view of FIG. 6;
FIG. 9 is a right side elevation view of FIG. 6; and,
FIG. 10 is a left side elevation view of FIG. 6.
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