| US Patent: RE1,456 
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| Improvement in setting teeth in saws and saw-plates | 
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| Patentee: |  |
 | Nathan W. Spaulding (exact or similar names) - San Francisco, CA |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Apr. 21, 1863 |  
 
| Reissue Information: |  | Reissue of 33,270 (Sep. 10, 1861) |  USPTO (New site tip)
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                        Jeff Joslin
 
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| Description: |  | The EAIA "Directory of American Toolmakers" and the 1874 "Wiley's American iron trade manual of the leading iron industries of the United States" both list N. W. Spaulding & Bros., which was located at 20 South Canal St. in Chicago. |  |