| US Patent: 355,444 
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| Wrench | 
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| Patentee: |  |
 | Conrad Farner (exact or similar names) - Milwaukee, WI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jun. 21, 1886 |  
| Granted: | Jan. 04, 1887 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Conrad Farner patent January 4, 1887 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | A toothed block in the movable jaw engages rack teeth on the shank to hold the size adjustment. A toggle-levered key lifts and lowers the block.  The jaw portion of the movable jaw has limited swinging motion, and is held in gripping position by a compression spring.  The design is intended for use on pipe or nuts. |  |