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US Patent: 377,783
Rotary tool driver
Patentee:
George Frederick Shaver - New York, NY

USPTO Classifications:
74/127

Tool Categories:
screwdrivers : screwdriver mechanisms : spiral screwdrivers

Assignees:
Shaver Corp. - New York, NY

Manufacturer:
Shaver Corp. - New York, NY

Witnesses:
Andrew Powell
Lewis Hurst

Patent Dates:
Applied: Sep. 03, 1887
Granted: Feb. 14, 1888

Patent Pictures: [ 1 | 2 ]
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