| US Patent: 334,387 
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| Pipe Wrench Improvements in Pipe-Tongs
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| Patentee: |  |
 | Henry L. Housholder (exact or similar names) - Hebron, IL |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Nov. 05, 1885 |  
| Granted: | Jan. 12, 1886 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Henry L. Housholder patent January 12, 1886 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | A cam surface on the back face of the swinging handle provides the adjusting force for the sliding jaw. |  |