| US Patent: 13,221 
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| Slide-Wrench | 
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| Patentee: |  |
 | Benjamin F. Joslyn (exact or similar names) - Worcester, MA |  
 
 
 
 
 
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| Patent Dates: |  
| Granted: | Jul. 10, 1855 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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			1 | 2
	        ] |  |  |  | Benjamin F. Joslyn patent July 10, 1855 - components and final appearance |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Adjustment of the moving jaw is effected by an internally threaded sleeve. See also patent no. 16,733 which reflects the way wrenches marked with this patent date were actually produced. 
Pictured as #399 in "Antique & Unusual Wrenches" by Schulzes. |  |