| US Patent: 58,568 
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| Improvement in boring-machines | 
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| Patentee: |  |
 | Robert Allison (exact or similar names) - Port Carbon, PA |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Oct. 09, 1866 |  USPTO (New site tip)
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                        Jeff Joslin
 Vintage Machinery entry for Allison & Bannan, Franklin Iron Works
 
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| Description: |  | "The nature of this invention consists in providing a novel portable tool for boring or reaming the shaft-holes in large cast-iron fly or cog wheels, pulleys, spiders, &c., conveniently, expeditiously, and cheaply..." |  |