Safety screwdriver

Details Safety screwdriver Safety screwdriver

1980-01-28

1981-08-25

Kunin, Stephen G.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

B25B 1500

Patent

active

042852552

ABSTRACT:
A safety screwdriver having a handle and a shank portion which includes an axially extending tubular extension surrounding a substantially rectangular blade recessed within. In the preferred embodiment the blade and tubular extension are a unitary construction with opposite side edges of the blade integrally cast to the side walls of the tube.

REFERENCES:
patent: 29760 (1860-08-01), Boeklen
patent: 3178971 (1965-04-01), Bachli et al.
patent: 4130152 (1978-12-01), Bolen

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