| US Patent: 349,963 
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| Apparatus for Boring Cylinders | 
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| Patentees: |  
 | John Delany Watson (exact or similar names) - Wyatt, Harrison County, WV |  | Alonzo Willcox (exact or similar names) - Wyatt, Harrison County, WV |  
 
| USPTO Classifications: |  | 144/225, 144/99, 29/27B, 29/27R, 29/557, 29/90.01, 408/709, 408/78, 408/81, 72/70, 82/117, 82/137 |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | May 28, 1886 |  
| Granted: | Sep. 28, 1886 |  USPTO (New site tip)
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                        Joel Havens
 
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