Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Patent
1983-12-27
1985-11-19
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
81111, B25B 2308
Patent
active
045534551
ABSTRACT:
A starter for a nut, the starter having blades with outer edges possessing at least one innermost flat, at least one outer flat and a step connecting said flats.
REFERENCES:
patent: 2740311 (1956-04-01), Tedei
patent: 2787492 (1957-04-01), Gisser et al.
patent: 3208489 (1965-09-01), Walker et al.
patent: 3288184 (1966-11-01), Kyser
Schwerin Vernon L.
Wilcox Melvin S.
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