| US Patent: 444,778 
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| Bench Clamp For Pipe Tongs and Wrenches | 
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| Patentee: |  |
 | Clarence V. Greenamyer (exact or similar names) - San Francisco, CA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Sep. 09, 1890 |  
| Granted: | Jan. 13, 1891 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Clarence V. Greenamyer patent January 13, 1891 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The clamp consists of a channel iron base, along with a loop having a threaded extension and a tightening hand-nut. This tool would be fastened to a work bench or similar stable surface. 
One of the wrenches shown in the illustrations is the design in Greenamyer's parallel patent (no. 444,779). |  |