| US Patent: 141,477 
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| Wrenches | 
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| Patentee: |  |
 | Samuel W. Wakefield (exact or similar names) - Keokuk, IA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 16, 1873 |  
| Granted: | Aug. 05, 1873 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Samuel W. Wakefield Pat. Aug. 5, 1873 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The tool is proposed as a bolt-wrench with a tapered slot; the large end of the slot toward the handle.  Having the end closed prevents the jaws from "springing." |  |