| US Patent: 600,968 
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| Pipe Wrench | 
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| Patentee: |  |
 | Samuel Montgomery (exact or similar names) - New York, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 15, 1897 |  
| Granted: | Mar. 22, 1898 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Samuel Montgomery patent March 22, 1898 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Self-adjusting hook jaw pipe wrench with a spring working to close the jaws. |  |