Tools and hardware – Other tools and implements – Screwdriver type
Patent
1982-06-22
1984-10-30
Douglas, Alan P.
Tools and hardware
Other tools and implements
Screwdriver type
Patent
active
D02761270
REFERENCES:
patent: D142982 (1945-11-01), Bloomfield
patent: 3328999 (1967-07-01), Peterson et al.
Dainow J. David
Douglas Alan P.
Pioneer Hand Tools Industrial Co.
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