Screwdriver

Details Screwdriver Screwdriver

1993-07-06

1995-11-07

Shooman, Theodore M.

Tools and hardware

Other tools and implements

Screwdriver type

Patent

active

D03638685

REFERENCES:
patent: D248537 (1978-07-01), Smith
patent: D256662 (1980-09-01), Holland-Letz
patent: D261610 (1981-11-01), Fee et al.
patent: D261979 (1981-11-01), Smith et al.
patent: D278593 (1985-04-01), MacGregor
patent: D288168 (1987-02-01), Graham
patent: D288656 (1987-03-01), Smith
patent: D298101 (1988-10-01), Chen
patent: D310011 (1990-08-01), Holland-Letz
patent: 3683984 (1972-08-01), Hull
patent: 4372362 (1983-02-01), Ahn

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