| US Patent: 814,020 
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| Hand-Controlled Tool Convertible Tool Handle
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| Patentee: |  |
 | Harlon A. Clifford (exact or similar names) - Millers Falls, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 19, 1905 |  
| Granted: | Mar. 06, 1906 |  USPTO (New site tip)
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                        Steve Gosselin
 
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| Description: |  | This is a tool handle intended for use with screwdriver bits, gimlet bits, etc. In one position, the internal stock locks into the handle, allowing the bit to be driven by the handle. In another position, it can be mounted in a brace, and the stock and bit rotate within the handle while being driven by the brace. |  |