| US Patent: 95,483 
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| Improvement in boring-tool | 
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| Patentees: |  
 | William J. Johnson (exact or similar names) - Newton, MA |  | George Tainter (exact or similar names) - Watertown, MA |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Oct. 05, 1869 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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			1 | 2
	        ] |  |  |  | Johnson & Taintor No. 95483; patent drawing's images rearranged. |  Google Patents
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                        Steve Gosselin (GL)
 
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| Description: |  | An 1882 Goodnow and Wightman catalog shows an example of this tool configured as a screwdriver, along with a suggestion that it is appropriate for use by dentists. |  |