| US Patent: 386,566 
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| Boring-machine Hub boring machine
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| Patentee: |  |
 | William D. Tripp (exact or similar names) - Augusta, KS |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Aug. 19, 1887 |  
| Granted: | Jul. 24, 1888 |  USPTO (New site tip)
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                        Jeff Joslin
 
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| Description: |  | "The object of my invention is to provide a useful and reliable machine, which may be readily made of inexpensive materials in a few hours' time by any mechanic of ordinary skill." |  |