Screwdriver

Details Screwdriver Screwdriver

1992-01-21

1993-10-26

Ansher, Bernard

Tools and hardware

Other tools and implements

Screwdriver type

Patent

active

D03406334

REFERENCES:
patent: D229475 (1973-12-01), Uboldi
patent: D261610 (1981-11-01), Fee et al.
patent: D261979 (1981-11-01), Smith et al.
patent: D288656 (1987-03-01), Smith
patent: 1603985 (1926-10-01), Rosenberg
patent: 2213973 (1940-09-01), Woodring
patent: 2673284 (1954-03-01), Henderson
patent: 3173462 (1965-03-01), Koeppel
patent: 3683984 (1972-08-01), Hull

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