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						 Patent  
						   D556524  
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						 Priority  
						Mar 12 2007 
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						 Filed 
						Mar 12 2007  
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						 Issued 
						Dec 04 2007 
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						 Expiry 
						Dec 04 2021 
					   
					   						
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						 Assg.orig 
						
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						 Entity 
						unknown 
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					    4 
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					    27 
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			  The ornamental design for a torsion bar adjustment key, as shown and described. 
			  
			  
			  
			  
			 
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FIG. 1 is a perspective view of the design;
FIG. 2 is a side elevation view of the design;
FIG. 3 is a front end view of the design;
FIG. 4 is a rear end view of the design;
FIG. 5 is a top plan view of the design; and,
FIG. 6 is a bottom plan view of the design.
	
	Ryshavy, John William, Ryshavy, James Richard
	
	
	
	
	  
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	  | 
	 
    
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	 Dec 29 1977 | 
	 Nissan Motor Company, Limited | 
	 Suspension height adjusting mechanism in torsion-bar suspension system | 
	 
    
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	 Nov 18 1981 | 
	  | 
	 Tilt back mechanism for a chair | 
	 
    
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	 Oct 27 1987 | 
	  | 
	 Apparatus for adjustment of automobile torsion bar suspension assembly | 
	 
    
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	 Nov 02 1990 | 
	 Sulzer Brothers Limited | 
	 Torsion rod type picking mechanism for a projectile loom | 
	 
    
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	 Sep 05 1995 | 
	 FORD GLOBAL TECHNOLOGIES, INC  A MICHIGAN CORPORATION | 
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	 Jun 05 1995 | 
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	 Jun 23 1999 | 
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	 Aug 03 2000 | 
	  | 
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	 May 25 2000 | 
	 MERITOR SUSPENSION SYSTEMS COMPANY, US | 
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	 Jun 02 2000 | 
	 FCA US LLC | 
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	 May 24 2000 | 
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	 Jul 14 1999 | 
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	 Jun 21 2001 | 
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	 Oct 21 2002 | 
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	 | 7052025,  | 
	 Aug 28 2003 | 
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	  | 
	  | 
	  | 
	 
    
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	 Dec 06 1978 | 
	  | 
	 Pump flange tool | 
	 
    
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	 Nov 03 2003 | 
	  | 
	 Bottle opener | 
	 
    
	 | D516637,  | 
	 Feb 02 2005 | 
	 HSBC BANK CANADA | 
	 Concave convex loop marker mounting block adapter | 
	 
	
	
	
	
	
	  
	  	 | Date | 
	  	 Maintenance Fee Events | 
	  
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	  	 | Date | 
	  	 Maintenance Schedule | 
	  
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