| US Patent: 190,959 
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| Wrench | 
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| Patentee: |  |
 | Horace Davis (exact or similar names) - Berlin, WI |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Apr. 12, 1877 |  
| Granted: | May 22, 1877 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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			1 | 2
	        ] |  |  |  | Horace Davis patent May 22, 1877 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Self-adjusting nut wrench. One extant example is marked with the patent date, and is approx. 12 inches long. |  |