| US Patent: 289,056 
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| Screwdriver | 
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| Patentees: |  
 | George S. Allen (exact or similar names) - Southington, CT |  | Robert C. Ellrich (exact or similar names) - Southington, CT |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Sep. 19, 1882 |  
| Granted: | Nov. 27, 1883 |  USPTO (New site tip)
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                        Steve Gosselin
 
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| Description: |  | The shank has a soft metal bolster cast on it which is then swaged onto handle. |  |