| US Patent: 511,155 
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| Pipe Wrench | 
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| Patentee: |  |
 | Charles B. Merritt (exact or similar names) - Gouverneur, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Aug. 31, 1893 |  
| Granted: | Dec. 19, 1893 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Charles B. Merritt patent December 19, 1893 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The hook jaw slides in a yoke that pivots on a lug extending from the main shank.   Toothed faces on the jaws enable a grip on pipe or nuts. |  |