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US Patent: 624,875
Screw Driver
replaceable screwdriver blade
Patentees:
Burnside E. Sawyer (exact or similar names) - Athol, MA
William D. Arnott (exact or similar names) - Athol, MA

USPTO Classifications:
279/103, 81/438

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
None

Manufacturer:
Sawyer Tool Mfg. Co. - Fitchburg, MA

Witnesses:
Joseph A. Ryan
Amos W. Hart
Dennis Collins
Andrew J. Hamilton

Patent Dates:
Applied: Sep. 13, 1898
Granted: May 09, 1899

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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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

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