| US Patent: 86,407 
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| Improvement in saws | 
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| Patentee: |  |
 | Nicholas Jenkins (exact or similar names) - New York, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Granted: | Feb. 02, 1869 |  
| Antedated: | Jan. 18, 1869 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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                        Jeff Joslin
 
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| Description: |  | This unusual machine has a circular sawblade with all but the rim removed. The saw is meant to be used for curved cuts, rather like a bandsaw. The advantage over a bandsaw is that blade does not need to flex as it rotates; at the time of the patent, bandsaw blades were prone to breakage due to metal fatigue.Compare this patent to that for "Grant's annular saw", patent 973. |  |