US Patent: 983,271 
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| Pipe Wrench
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	        Patentee:
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 | Ernst Enderes (exact or similar names) - Littleport, Clayton County, IA |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Jul. 21, 1909 | 
 
| Granted: | 
Feb. 07, 1911 | 
 
 
 
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		  Patent Pictures:
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Ernst Enderes patent July 7, 1911  |  
 
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                        Stan Schulz 
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        Description: |  
| A spring-loaded pin in the frame pushes the movable jaw toward the "end" of the shank; a spring-loaded pawl in a frame sets the opening size for the movable jaw. |  
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