Tools and hardware – Other tools and implements – Wrench
Patent
1986-06-30
1989-08-29
Dunkins, Bruce W.
Tools and hardware
Other tools and implements
Wrench
Patent
active
D03030695
REFERENCES:
patent: D34540 (1901-05-01), Engstrom
patent: 1184711 (1916-05-01), Baxter et al.
patent: 1297846 (1919-03-01), Herrman
patent: 3215009 (1965-11-01), Peterson
Proto Tool Catalog #PR120-6902, p. 20/Combination Wrench to right of page.
Dunkins Bruce W.
Heflin Clare E.
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