Knife sharpener

Measuring and testing – Ductility or brittleness

Patent

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Details

76 89, B21K 512

Patent

active

054619424

ABSTRACT:
A knife sharpener is disclosed having an elongated handle and a blade sharpening unit mounted to a platform at a distal end of the handle for rotation between first and second secured positions for selective orientation of a blade draw direction to accommodate use by either a right-handed or a left-handed individual. The blade sharpening unit includes a lock tab biased for receipt within a selected one of a pair of keyways formed in the platform, each keyway being associated with one of the first and second positions.

REFERENCES:
patent: D145803 (1946-10-01), Jones
patent: D173204 (1954-10-01), Hussar
patent: D183530 (1958-09-01), Lamb
patent: D315663 (1991-03-01), Dolbosco
patent: D323450 (1992-01-01), Shimizu
patent: 435553 (1880-09-01), Blood
patent: 668226 (1901-02-01), Shoemaker
patent: 1458938 (1923-06-01), Heyman
patent: 2446909 (1948-08-01), Davis
patent: 4112790 (1978-09-01), Marder
patent: 4498360 (1985-02-01), Milum
patent: 4751795 (1988-06-01), Jenne

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