Blade sharpener

Abrading – Machine – Reciprocating tool

Reexamination Certificate

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Details

C451S557000, C451S371000

Reexamination Certificate

active

07867062

ABSTRACT:
A hand-operated blade sharpener providing engagements of a blade by an abrasive stone at pre-selected angles to the blade is disclosed.

REFERENCES:
patent: 905331 (1908-12-01), Larsen et al.
patent: 1148303 (1915-07-01), Farrar
patent: 1368218 (1921-02-01), Chenette
patent: 2949947 (1960-08-01), Story
patent: 4216627 (1980-08-01), Westrom
patent: 4471951 (1984-09-01), LeVine
patent: 5431068 (1995-07-01), Alsch
patent: 7052385 (2006-05-01), Swartz

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