| US Patent: 83,577 
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| Improvement in Combined Tools | 
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| Patentees: |  
 | John D. Wilkinson (exact or similar names) - Platteville, NY |  | E. O. Boyle (exact or similar names) - Platteville, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Oct. 27, 1868 |  USPTO (New site tip)
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                        Ralph Brendler
 
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| Description: |  | This machinist's combination tool features a wire gauge, calipers, dividers, squar,e and rule, all in a very compact package. |  |