US Patent: 1,506,362 
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| Wrench
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	        Patentee:
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 | Alvin O. Carman (exact or similar names) - Potterville, MI |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Mar. 14, 1923 | 
 
| Granted: | 
Aug. 26, 1924 | 
 
 
 
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                        Stan Schulz 
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        Description: |  
| Cited as reference in 4,375,174.
Seymour & Bright - patent attorneys 
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