Tools – Wrench – screwdriver – or driver therefor – Slidable jaw adjustments
Patent
1993-03-02
1994-04-12
Watson, Robert C.
Tools
Wrench, screwdriver, or driver therefor
Slidable jaw adjustments
81170, B25B 1316
Patent
active
053015762
ABSTRACT:
The invention relates to the head of an adjustable wrench. A threaded adjustment mechanism provides the wrench with a clamping and locking capability.
REFERENCES:
patent: 2112840 (1938-04-01), Haist
patent: 2687662 (1954-08-01), Pugh
patent: 2813444 (1957-11-01), Hatch
patent: 2849908 (1958-09-01), Swanstrom et al.
patent: 2869409 (1959-01-01), Swanstrom et al.
patent: 3174366 (1965-03-01), Fujii
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