| US Patent: 62,105 
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| Hammer Improvement in Making Hammers
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| Patentee: |  |
 | Jonathan Yerkes (exact or similar names) - Fox Chase, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Feb. 12, 1867 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Jonathan Yerkes Pat. Feb. 12, 1867 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | This process patent explains a method for producing a malleable iron hammer head, with sharp-edged nail claws.
Yerkes partnered with Fayette Plumb in company of Yerkes and Plumb. Plumb took full control in 1886. |  |