US Patent: 207,814 
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| Wrench
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	        Patentee:
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 | John M. Marty (exact or similar names) - Faribault, MN |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Jan. 09, 1878 | 
 
| Granted: | 
Sep. 10, 1878 | 
 
 
 
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		  Patent Pictures:
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John M. Marty patent September 10, 1878  |  
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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        Description: |  
| The sliding jaw is held in adjustment by cam lobes on the swinging lever.  All three pieces are held together by a single bolt. |  
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