| US Patent: 56,191 
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| Improvement in Nail-Hammers Combined Hammer and Screw-Driver
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| Patentee: |  |
 | Christopher G. Dodge, Jr. (exact or similar names) - Providence, RI |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Jul. 10, 1866 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Christopher Dodge Jr. Pat. July 10, 1866 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The handle of the screwdriver is the butt of the hammer handle, and the screwdriver has a threaded portion to store it in a hollow in the hammer handle. |  |