Tools and hardware – Other tools and implements – Wrench
Patent
1988-04-25
1991-09-10
Dunkins, Bruce W.
Tools and hardware
Other tools and implements
Wrench
Patent
active
D03197590
REFERENCES:
patent: D177664 (1956-05-01), Caldwell et al.
patent: D260355 (1981-08-01), Buzzell
patent: D290581 (1987-06-01), Hughes
patent: 2570706 (1951-10-01), Peluse
patent: 2875658 (1959-03-01), Benjamin
patent: 3318176 (1967-05-01), Geier
patent: 4376397 (1983-03-01), Newby et al.
Dunkins Bruce W.
Hannon M.
Middleton James B.
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