US Patent: 306,491 - Screw holding screwdriver


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US Patent: 306,491

Screwdriver
Screw holding screwdriver

Patentee:

George W. Jackman (exact or similar names) - Littleton, NH

USPTO Classifications:

81/448, 81/461

Tool Categories:

screwdrivers : screwdriver blades

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

E. C. Stevens

B. F. Robison

Henry F. Green

Patent Dates:
Applied:	Feb. 16, 1884
Granted:	Oct. 14, 1884

Patent Pictures:

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Description:

The patent relates to a screwdriver with the ability to hold the screw on the tip while being driven. Jackman also invented a screw to be used by this screwdriver , Patent 306492