Knife sharpener

Tools and hardware – Other tools and implements – With relative movement of parts while performing function

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D 8 93

Patent

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D03638677

REFERENCES:
patent: D184653 (1959-03-01), Anderson
patent: D185556 (1959-06-01), Madl
patent: D202799 (1965-11-01), De Fano
patent: D202908 (1965-11-01), Schellens
patent: D218008 (1970-07-01), Julkenbeck
patent: D232516 (1974-08-01), Smith
patent: D280286 (1985-08-01), Van Asten
patent: D303209 (1989-09-01), Friel
patent: D310620 (1990-09-01), Friel
patent: D326986 (1992-06-01), Dressel et al.

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