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					| Patent    D258871 |  
					| Priority Jan 30 1978 |  
					| Filed Jan 30 1978 |  
					| Issued Apr 14 1981 |  
					| Expiry Apr 14 1995 |  
					|  |  
					| Assg.orig |  
					|  |  
					| Entity unknown |  
					 | 18 |  
					 | 4 |  
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						  n/a |  
						 
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			  The ornamental design for an oil plug temperature gauge, as shown and described. | 
 
	
FIG. 1 is a top plan view of an oil plug temperature gauge showing our new
design;
FIG. 2 is a typical side elevational view thereof; and
FIG. 3 is a bottom plan view thereof.
	
	Rajotte, Jr., Edward L., Coughlin, Patrick R.
	
	
	  
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