US Patent: 1,453,854 
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| Pipe Wrench
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	        Patentee:
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 | Burton H. Parker (exact or similar names) - Detroit, MI |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Jan. 24, 1922 | 
 
| Granted: | 
May 01, 1923 | 
 
 
 
USPTO (New site tip) Google Patents 
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                        Stan Schulz 
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| 
        Description: |  
| An adjustable alligator wrench with a bolt to set the size, and a lever handle to tighten the grip. |  
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