Retractable screwdriver

Details Retractable screwdriver Retractable screwdriver

1988-07-11

1992-05-19

Dunkins, Bruce W.

Tools and hardware

Other tools and implements

Screwdriver type

D 8 14, D 8 83, D 8 85, D 8 86, D 8106, D24 28

Patent

active

D03262138

REFERENCES:
patent: D43747 (1913-03-01), Schertz
patent: D227852 (1973-07-01), McGrew
patent: D303148 (1989-08-01), Rexroth et al.
patent: 348765 (1886-09-01), Neal
patent: 2782823 (1957-02-01), Williams
patent: 2788816 (1957-04-01), Dargols
patent: 3609864 (1969-08-01), Bassett
patent: 4571184 (1986-02-01), Edwardson

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Also associated with

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