Ratchet wrench

Details Ratchet wrench Ratchet wrench

1991-03-18

1993-08-31

Ansher, Bernard

Tools and hardware

Other tools and implements

Wrench

D 8 28

Patent

active

D03388166

REFERENCES:
patent: 1822428 (1931-09-01), Zilliox
patent: 1830577 (1931-11-01), Vallone
patent: 2161163 (1939-06-01), Hedgpeth
patent: 2426763 (1947-09-01), Curtis
patent: 3802303 (1974-04-01), Evans et al.
patent: 3858464 (1975-01-01), Evans
patent: 4715252 (1987-12-01), Pella
patent: 4751840 (1988-06-01), Windsor
patent: 4774862 (1988-10-01), Scull
patent: 4811638 (1989-03-01), Kertzscher
patent: 4848194 (1989-07-01), Santorineos

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