Screwdriver

Details Screwdriver Screwdriver

1990-08-01

1991-10-01

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

811774, 81489, 81492, B25B 2100

Patent

active

050522531

ABSTRACT:
A screwdriver comprising a handle having a sleeve mounted on the blade thereof for releasably fastening a screw head retainer socket to secure the device to a screw to be fastened or loosened. The handle is comprised of two sections which are permitted to rotate against each other.

REFERENCES:
patent: 774112 (1904-11-01), Rundquist
patent: 950318 (1910-02-01), Dunning
patent: 4227430 (1980-10-01), Jansson et al.

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