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					| Patent    D591740 |  
					| Priority Mar 04 2008 |  
					| Filed Aug 29 2008 |  
					| Issued May 05 2009 |  
					| Expiry May 05 2023 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 28 |  
					 | 7 |  
					 | 
						  n/a |  
						 
    |  |  | 
			  
			  The ornamental design for a back cover for a portable electronic device, as shown and described. | 
 
	
FIG. 1 is a perspective view of a back cover for a portable electronic device showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a reference view showing a state of being used thereof.
The broken lines shown in the figures are for illustrative purposes only and do not form part of the claimed design.
	
	Luke, Hok-Sum Horace, Wu, Chien-Hung, Lin, Yen-Hung, Chien, Chih-Ling
	
	
	  
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