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						 Patent  
						   D878537  
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						 Priority  
						Nov 24 2016 
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						 Filed 
						Nov 28 2018  
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						 Issued 
						Mar 17 2020 
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						 Expiry 
						Mar 17 2035 
					   
					   						
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						 Assg.orig 
						
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						 Entity 
						unknown 
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					    13 
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					    17 
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			  The ornamental design for an air diffuser, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a front elevation view of an air diffuser, embodying our new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a side elevation view thereof;
FIG. 4 is an opposite side elevation view thereof;
FIG. 5 is a front, top, and side perspective view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a top plan view thereof.
	
	Gobber, Cedric, Llorente Alonso, Joaquim, Jonsson, Asa
	
	
	  
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