| US Patent: RE7,021 
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| Improvement in saws | 
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| Patentee: |  |
 | Charles Disston (exact or similar names) - Philadelphia, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Feb. 17, 1876 |  
| Granted: | Mar. 28, 1876 |  
 
| Reissue Information: |  | Reissue of 63,024 (Mar. 19, 1867) |  USPTO (New site tip)
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                        Russ Allen.
 
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| Description: |  | Detachable tooth with an elastic segment made separate from the tooth, adapted to the blade which allows the tooth to lock into the blade. |  |