| US Patent: 467,381 
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| Wrench | 
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| Patentees: |  
 | William F. Parsons (exact or similar names) - New Kamilche, WA |  | Andrew Davis (exact or similar names) - New Kamilche, WA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Sep. 16, 1891 |  
| Granted: | Jan. 19, 1892 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | William F. Parsons and Andrew Davis patent January 19, 1892 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Monkey wrench with an adjustable-angle handle. The pawls  on the handle that hold the adjustment have a strong spring between them to hold them in engagement with the notches in the upper portion. |  |