Tools and hardware – Other tools and implements – Wrench
Patent
1986-08-27
1989-07-04
Dunkins, Bruce W.
Tools and hardware
Other tools and implements
Wrench
D 8 14, D 8 29, D 8 71
Patent
active
D03019640
REFERENCES:
patent: 174486 (1876-03-01), Collingsworth
patent: 2895362 (1959-07-01), Jamgotchian
patent: 2985208 (1961-05-01), Hibbard et al.
patent: 4096621 (1978-06-01), Berger et al.
patent: 4738167 (1988-04-01), Ball
Dunkins Bruce W.
Heflin Clare E.
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