US Patent: 148,316 
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| Improvement in Try-Squares and Bevels
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	        Patentee:
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 | George C. Miller (exact or similar names) - Detroit, MI |  
 
 
 
 
 
 
 
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        Patent Dates:
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| Applied: | 
Sep. 15, 1873 | 
 
| Granted: | 
Mar. 10, 1874 | 
 
 
 
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		  Patent Pictures:
	      
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Image courtesy & (C) by Steve Gosselin  |  
 
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                        Russ Allen. 
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        Description: |  
| Blade is secured by the wedge action of the rod attached to the wingnut. Blade is marked in an arch: DET. BEVEL & DIVIDER / DETROIT MICH. 
Very similar to Sargent's patent, 141,081. |  
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