| US Patent: 406,666 
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| Combination Wrench | 
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| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Jun. 19, 1888 |  
| Granted: | Jul. 09, 1889 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Fred J. Pratt and John H. Lane patent July 9, 1889 |  Google Patents
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                        Stan Schulz
 Brass example at 45spaces
 
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| Description: |  | Quick-adjust bicycle wrench with spoke wrench and screwdriver. The wrench and screwdriver adjustment is held by a toothed pressure plate adjusted by nut.
A known unmarked brass example appears to have been manufactured, but may have been a prototype. |  |