| US Patent: 181,649 
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| Improvement in Plane-Irons | 
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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: |  
| Applied: | Apr. 29, 1876 |  
| Granted: | Aug. 29, 1876 |  USPTO (New site tip)
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                        Steve Reynolds
 
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| Description: |  | The indentations on the bevel face, as well as the plane iron itself, are formed in a pair of dies - saving on tool steel. In addition, the indentations are intended to lessen the material to be removed, and the labor necessary, while grinding and honing the iron. |  |