| US Patent: 139,931 
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| Improvement in clamping devices | 
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| Patentee: |  |
 | Charles Stout (exact or similar names) - Waverly Heights, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 12, 1873 |  
| Granted: | Jun. 17, 1873 |  USPTO (New site tip)
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                        Carl Matthews
 
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| Description: |  | "The object of my invention is to enable fence-rails and other objects to be securely clamped and held while working upon the same..." |  |