The ornamental design for a “fastening device,” as shown and described.
FIG. 1 is front elevation view of fastening device in accordance with a first exemplary embodiment, shown in an extended position, with the fastening device elements arranged in a longitudinal or parallel orientation;
FIG. 2 is a left side elevation view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a lower left perspective view thereof;
FIG. 8 is a front elevation of a fastening device in accordance with a second exemplary embodiment, also shown in an extended position but with the fastening device elements rotated to a transverse or perpendicular orientation;
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CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF FIRST-NAMED ASSIGNEE PREVIOUSLY RECORDED ON REEL 022896 FRAME 0046 ASSIGNOR S HEREBY CONFIRMS THE ASSIGNMENT