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			 The ornamental design for a pit bar system for attachment to vehicle's push bumper, as shown and described. 
			  
			  
			  
			  
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The broken lines showing a vehicle with a push bumper is for the purpose of illustrating environmental structure only and forms no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jan 28 2014 | LANINI, JEREMY | WESTIN AUTOMOTIVE PRODUCTS, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 032142 | /0332 | |
| Jan 29 2014 | Westin Automotive Products, Inc. | (assignment on the face of the patent) | / | 
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