US Patent: 167,825 
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| Dies for Forming Wrench-Bars, &c.
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	        Patentee:
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 | Aury Gates Coes (exact or similar names) - Worcester, MA |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Aug. 11, 1875 | 
 
| Granted: | 
Sep. 21, 1875 | 
 
 
 
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		  Patent Pictures:
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Aury G. Coes Pat. Sept. 21, 1875  |  
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| The patented feature of these forging dies are small passages for air, steam or water blast to clear dirt and scale. |  
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