| US Patent: 799,769 
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| Wrench | 
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| Patentee: |  |
 | Frank Nelson Wilson (exact or similar names) - Cripple Creek, CO |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Apr. 06, 1905 |  
| Granted: | Sep. 19, 1905 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Frank Nelson Wilson Pat. Sept. 19, 1905 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The sliding jaw works against a compression spring; the jaw is held in position by one or two latching levers.  The lever(s) are released by side button(s).  The levers in the two-lever version are a "half step" different from each other in length, providing for finer adjustment. |  |