| US Patent: 80,929 
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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: |  
| Granted: | Aug. 11, 1868 |  USPTO (New site tip)
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                        Russ Allen.
 
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| Description: |  | Detachable saw tooth with a circular elastic base that yields, enabling the tooth to be inserted and rotated into a notch in the saw plate. |  |