| US Patent: 63,944 
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| Bit-stocks | 
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| Patentee: |  |
 | Clemens B. Rose (exact or similar names) - Sunderland, MA |  
 
| USPTO Classifications: |  | 81/28 |  
 
 
 
 
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| Patent Dates: |  
| Granted: | Apr. 16, 1867 |  
 
| Reissue Information: |  | Reissued as RE6,212 (Jan. 05, 1875) |  
 
USPTO (New site tip)| Patent Pictures:
	      
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 Report data errors or omissions to steward 
                        Kirk Eppler
 Randy Roeder's Millers Falls Co. site
 "Vintage Machinery" entry for Millers Falls Co.
 
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| Description: |  | The example shown is actually a bit brace extension. It is marked on the shaft, "PAT'D APR 16.67 / BITSTOCK CO. / GREENFIELD MS". The chuck itself is unmarked. |  |