| 
 | The ornamental design for a knee pad, as shown and described. | |||||||||||||||||
FIG. 1 is a front perspective view of a knee pad showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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| D638995, | Dec 13 2010 | Pull'r Holding Company, LLC | Knee pad | 
| D823546, | Sep 20 2017 | Shin pad | 
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