Tools and hardware – Other tools and implements – Wrench
Patent
1989-01-17
1992-05-05
Ansher, Bernard
Tools and hardware
Other tools and implements
Wrench
Patent
active
D03258645
REFERENCES:
patent: 1168204 (1916-01-01), Helstrom
patent: 1281228 (1918-10-01), Sutton
patent: 2426763 (1947-09-01), Curtis
patent: 2438633 (1948-03-01), Condor
patent: 2886998 (1959-05-01), Scott
patent: 2963930 (1960-12-01), Clothier
patent: 3186265 (1965-06-01), Wenturine
patent: 3376768 (1968-04-01), Fortunato
patent: 4084456 (1978-04-01), Pasbrig
patent: 4530262 (1985-07-01), Pownall
Proto Tools, 1969, p. 47, Holding Clamps.
Ansher Bernard
Gernstein Terry M.
Hyder Philip
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