Tools and hardware – Other tools and implements – Screwdriver type
Patent
1979-10-18
1981-11-24
Douglas, Alan P.
Tools and hardware
Other tools and implements
Screwdriver type
D0804
Patent
active
D02619814
REFERENCES:
patent: D142267 (1945-08-01), Walraven
patent: D253030 (1979-10-01), Breger
Stanley.RTM. Screwdriver brochure, Triangular Grip Screwdriver on page.
Fee Robert W.
Smith Lloyd T.
Ten Eyck Richard E.
Douglas Alan P.
S/V Tool Company, Inc.
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