US Patent: 139,876 
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Improvement in bit-stocks Bit-stock head
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	        Patentee:
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 | Austin P. Daboll (exact or similar names) - New London, CT |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Mar. 29, 1873 | 
 
| Granted: | 
Jun. 17, 1873 | 
 
 
 
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                        Kirk Eppler "Vintage Machinery" entry for Wilson Manufacturing Co. (CT) Charles M. Doball 
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        Description: |  
| This bit-stock may have been manufacturing by I. Wilson / Wilson Manufacturing Co. 
Brother to Charles M. Daboll |  
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