| US Patent: 342,824 
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| Wrench Improvements in Adjustable Keys or Wrenches
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| Patentee: |  |
 | John K. Clark (exact or similar names) - Buffalo, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Oct. 20, 1885 |  
| Granted: | Jun. 01, 1886 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | John K. Clark patent June 1, 1886 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The wrench is for water stops, gas shutoffs, etc. which may be buried at some depth or located overhead. The shaft can be extended, has a "T" handle for leverage, and a pentagon socket for the five-sided bolt used to secure some stop box covers. The patent describes a couple of alternate modes of connecting the adjustable shank segments. |  |