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					| Patent    D726720 |  
					| Priority Mar 27 2014 |  
					| Filed Sep 26 2014 |  
					| Issued Apr 14 2015 |  
					| Expiry Apr 14 2029 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 13 |  
					 | 31 |  
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			  The ornamental design for a head mounted display device, as shown and described. | 
 
	
FIG. 1 is a perspective view of a head mounted display 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 plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a left side view thereof, showing the article in a position of use; and,
FIG. 9 is a top plan view showing a portion of the article shaded as transparent.
The broken lines are just for illustrative purposes only and form no part of the claimed design.
	
	Lee, Hophil, Lee, Junseop, Park, Seungbeom
	
	
	  
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