| US Patent: 317,187 
 | 
| Bit-brace | 
| 
| Patentee: |  |
 | Johannes Theodor Pedersen (exact or similar names) - Brooklyn, NY |  
 
 
 
 
 
 | 
| Patent Dates: |  
| Applied: | Mar. 05, 1885 |  
| Granted: | May 05, 1885 |  USPTO (New site tip)
 Google Patents
 Report data errors or omissions to steward 
                        Kirk Eppler
 
 | 
| 
| Description: |  | The December 1890 issue of Carpentry & Builder had an ad for the Pedersen's patent bit brace from American Bit-Brace Co. |  |