Tight-grip wrench

Details Tight-grip wrench Tight-grip wrench

1983-11-21

1985-08-13

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Plural pivoted jaws and handle-lever

81111, B25B 1328

Patent

active

045342458

ABSTRACT:
A tight-grip wrench has attributes of both a closed-end wrench and an open end wrench by having a handle which moves a large jaw relative to a small jaw.

REFERENCES:
patent: 531125 (1894-12-01), Lind
patent: 592036 (1897-10-01), Woods
patent: 672532 (1901-04-01), Kaley
patent: 794597 (1905-07-01), Dunham et al.
patent: 824082 (1906-06-01), Reynolds
patent: 877225 (1908-01-01), Paterson
patent: 1174907 (1916-03-01), Stickles et al.
patent: 1183371 (1916-05-01), Ginsburg
patent: 1204383 (1916-11-01), Spanier
patent: 1718719 (1929-06-01), Turner
patent: 2646709 (1953-07-01), Daniels
patent: 3309949 (1967-03-01), Neff
patent: 3358532 (1967-12-01), Allred
patent: 4130032 (1978-12-01), Giandomenico et al.

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