Tools and hardware – Other tools and implements – Screwdriver type
Patent
1980-04-23
1982-07-27
Douglas, Alan P.
Tools and hardware
Other tools and implements
Screwdriver type
D0804
Patent
active
D02655446
REFERENCES:
patent: D172518 (1954-06-01), Sackstein
patent: 3173462 (1965-03-01), Koeppel
Douglas Alan P.
Rosenberg Morton J.
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