| US Patent: 609,146 
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| Wrench | 
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| Patentee: |  |
 | Hubert C. Hart (exact or similar names) - Unionville, CT |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Dec. 22, 1897 |  
| Granted: | Aug. 16, 1898 |  
 
USPTO (New site tip)| Patent Pictures:
	      
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			1 | 2
	        ] |  |  |  | Hubert C. Hart patent August 16, 1898 |  Google Patents
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                        Stan Schulz
 
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| Description: |  | Adjustable jaw formed from a symmetrical stamping, including extended "pegs" that form the shaft for the adjusting nut. Corresponding German "Gebrauchsmuster" registration D.R.G.M. Nr. DG-96717 dated May 25, 1898. 
Known example marked AETNA PAT. AUG. 16, 98. 
According to Ken Cope's "American Wrench Makers 1830-1930," Upson and Hart of Unionville, CT produced this wrench. |  |