| US Patent: 108,946 
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| Improvement in Caps for Plane-Irons | 
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| Patentee: |  |
 | Charles N. Tuttle (exact or similar names) - Auburn, NY |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Nov. 01, 1870 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Steve Reynolds
 
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| Description: |  | Tuttle forms the threaded hub by brazing a piece of iron onto the steel cap. He claims this is less expensive than the earlier swaging on of the piece. 
Charles N Tuttle, along with Edward Myderse Howland, Nelson Fitch, and C.P. Fitch had a contract for prison labor at Auburn State Prison from 1869 - 1874 to make plane irons and wooden planes. The DAT lists a "Howland & Co, Augustus working in Auburn NY as using a Beehive trademark. |  |