| US Patent: 355,270 
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| Pipe Wrench Improvements in Bolt-Holders
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| Patentee: |  |
 | Price Johnson (exact or similar names) - Hutsonville, IL |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 18, 1886 |  
| Granted: | Dec. 28, 1886 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Price Johnson patent December 28, 1886 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The specifications describe the wrench in use on headless bolts, either to hold the shank, or as a holder for the heads of plow bolts.  The movable base for the swinging hook slides in a central slot in the shank. |  |