| US Patent: 300,717 
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| Wrench | 
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| Patentee: |  |
 | Frank Waldo Merrick (exact or similar names) - Sandusky, OH |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 31, 1884 |  
| Granted: | Jun. 17, 1884 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | F. W. Merrick patent June 17, 1884 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The parts are castings.  The movable jaw is slid into place, after which a collar is shrunk around the handle to prevent its removal.  The circular openings in the handle are bolt size gages; the end of the handle is a scraper or screwdriver. The adjusting worm has a cut-away thread portion to allow for quick and screw adjust.  The movable jaw includes nut and pipe gripping functions. |  |