| US Patent: RE3,350 
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| Improvement in Wrenches | 
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| Patentee: |  |
 | Aury Gates Coes (exact or similar names) - Worcester, MA |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Mar. 30, 1869 |  
 
| Reissue Information: |  | Reissue of 52,968 (Mar. 06, 1866) |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | A.G. Coes Pat. Reissued Mar. 30, 1869 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The shank of a monkey wrench has a "notch" to help support the "back strain" of the adjusting screw against a two-part ferule and handle.  In the early 1870s, A.G. COES & Co. ads were featuring this "lock ferule."
In one phase of one of the lawsuits in the COLLINS v. COES patent infringement litigation, issue was taken with some of the "re-wording" in this reissue compared to the 52,968 original, and the claims in the "Jordan & Smith" patent 50,364 used by Collins & Co. |  |