| US Patent: 436,073 
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| Nut Wrench | 
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| Patentees: |  
 | Benjamin Clow (exact or similar names) - Jersey City, NJ |  | George E. Clow (exact or similar names) - Jersey City, NJ |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Jun. 07, 1890 |  
| Granted: | Sep. 09, 1890 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Benjamin Clow and George E. Clow patent September 9, 1890 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | The handle connects to the nearer jaw by a flange; turning the handle extends the further jaw. A primary feature of the patent is the internal adjustable friction spring which helps hold the adjustment. Produced as CLOW'S BOSS wrench. 
A known 5 inch long example is marked "ROUSE MFG. CO. JERSEY CITY, NJ" and "CLOWS PAT. SEPT. 9, 1890"
In corresponding Canadian patent CA-35,136, George E. Clow's address is given as Pittsfield, MA. |  |