| US Patent: 624,875 
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| Screw Driver replaceable screwdriver blade
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| Patentees: |  
 | Burnside E. Sawyer (exact or similar names) - Athol, MA |  | William D. Arnott (exact or similar names) - Athol, MA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Sep. 13, 1898 |  
| Granted: | May 09, 1899 |  
 
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                        Steve Gosselin
 
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| Description: |  | This patent was given to Burnside Sawyer on May 9, 1899 for his replaceable blade design screwdriver. Sawyer Tool Manufacturing Company of Fitchburg, Mass. manufactured the screwdriver and it is advertised in an early 1900's catalog for the Sawyer Tool Mfg. Co. Munn & Co. - patent attorneys |  |