| US Patent: 1,113,389 
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| Wrench | 
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| Patentee: |  |
 | Frederick E. Walden (exact or similar names) - Worcester, MA |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
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| Patent Dates: |  
| Applied: | Mar. 08, 1912 |  
| Granted: | Oct. 13, 1914 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Frederick E. Walden patent October 13, 1914 |  Google Patents
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| Description: |  | Two shanks are bound by a flat helix wire. The end inserted in lengthwise half slots in the two shanks keeps them aligned; the other end can be pulled out from cross slots sufficiently to allow one shank to slide in and out for size adjustment. The jaws form an "alligator" wrench. 
Compare this to the SHAW WRENCH (pat. no. 956,280) and Walden's March 9, 1920 patent no. 1,333,517. |  |