| US Patent: 64,954 
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| Improved Process of Treating Steel Blades | 
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| Patentee: |  |
 | Henry Disston (exact or similar names) - Philadelphia, PA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | May 21, 1867 |  USPTO (New site tip)
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                        Russ Allen.
 
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| Description: |  | Treatment of blades (straightening and sizing) through impact or pressure immediately after acheiving the desired temper and while still hot. |  |