| US Patent: 37,694 
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| Improvement in Bench-Planes | 
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| Patentee: |  |
 | Seth C. Howes (exact or similar names) - South Chatham, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Feb. 17, 1863 |  USPTO (New site tip)
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                        Steve Reynolds
 
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| Description: |  | A mechanism for depth adjustment using serrated plates and trunnions.
Howe also had another cutter adjustment patent 40483.  In PTAMPIA1, Roger Smith states that none of these are known. |  |