Knife sharpener

Details Knife sharpener Knife sharpener

1988-08-24

1992-07-14

Walsh, Donald P.

Tools and hardware

Other tools and implements

Abrading

D 7378, D 7384, D 8 14, 51214

Patent

active

D03278336

REFERENCES:
patent: D152691 (1949-02-01), Humpal et al.
patent: D261718 (1981-11-01), Harrison
patent: D272120 (1984-01-01), Sawada et al.
patent: D280286 (1985-08-01), Van Asten
patent: D284736 (1986-07-01), Kawai et al.
patent: D299308 (1989-01-01), Prindle
patent: D310620 (1990-09-01), Friel
patent: 564403 (1896-07-01), Whitney
Merchandising Apr. 1984, p. 27, "Sanyo Exclusive New Self-Storage Food Processer".

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