| US Patent: 572,757 
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| Pipe Wrench | 
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| Patentee: |  |
 | Ambrose F. Jackson (exact or similar names) - Oklahoma, OK |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jun. 29, 1896 |  
| Granted: | Dec. 08, 1896 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Ambrose F. Jackson patent December 8, 1896 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Adjustable alligator type pipe wrench.  One jaw can "shift" on its pivot point; that movement is facilitated by an anti-friction roller. |  |