| US Patent: 334,333 
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| Traction Engine | 
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| Patentee: |  |
 | Benjamin S. Benson (exact or similar names) - Baltimore, MD |  
 
| USPTO Classifications: |  | 104/244.1, 122/109, 172/26, 172/280, 172/292, 172/834, 180/36, 180/8.7, 180/9.23, 180/9.62, 305/130 |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jul. 30, 1885 |  
| Granted: | Jan. 12, 1886 |  USPTO (New site tip)
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                        Joel Havens
 
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