Tools and hardware – Other tools and implements – Wrench
Patent
1980-12-08
1982-12-28
Douglas, Alan P.
Tools and hardware
Other tools and implements
Wrench
D0805
Patent
active
D02673924
REFERENCES:
patent: D115301 (1939-06-01), Spexarth
patent: 1072479 (1913-09-01), Martindale
patent: 1367297 (1921-02-01), Bullard
patent: 2858710 (1958-11-01), Landwehr et al.
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