Screwdriver

Details Screwdriver Screwdriver

1991-12-13

1993-09-07

Ansher, Bernard

Tools and hardware

Other tools and implements

Screwdriver type

D 8 19

Patent

active

D03390470

REFERENCES:
patent: D116179 (1939-08-01), Yates, Jr.
patent: D161321 (1950-12-01), De Fee
patent: D167058 (1952-06-01), Rhodes
patent: D173036 (1954-09-01), Morton
patent: D223133 (1972-03-01), Olt
patent: D229390 (1973-11-01), Hart
patent: D278880 (1985-05-01), Widen
patent: D308080 (1990-05-01), Sachs
patent: 1040564 (1912-10-01), Merrill
patent: 2092586 (1937-09-01), Naumovich
patent: 4037275 (1977-07-01), Schor
Ilco Unican Key Blank Catalog, 1984, MO1 and AL1.
Photograph of Applicant's prior screwdriver.

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