| US Patent: 547,534 
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| Wrench | 
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| Patentee: |  |
 | Albert Dodd Barnett (exact or similar names) - Newark, NJ |  
 
| USPTO Classifications: |  | 81/77 |  
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Feb. 11, 1895 |  
| Granted: | Oct. 08, 1895 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Albert Dodd Barnett patent October 8, 1895 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Screw-adjust double-end "socket" type wrench.  The ends are different sizes, and face in opposite directions. |  |