| US Patent: 132,790 
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| Improvement in bit-stocks | 
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| Patentee: |  |
 | Quimby S. Backus (exact or similar names) - Millers Falls, MA |  
 
| USPTO Classifications: |  | 81/37 |  
 
 
 
 
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| Patent Dates: |  
| Granted: | Nov. 05, 1872 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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	        ] |  |  |  |  |  Google Patents
 Report data errors or omissions to steward 
                        Kirk Eppler
 Randy Roeder's Millers Falls Co. site
 "Vintage Machinery" entry for Millers Falls Co.
 
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| Description: |  | "The nature of my invention consists in the devices for holding a bit-brace for boring at an angle firmly at the desired angle..."See the writeup on Backus accompanying patent 132,791. |  |