Knife sharpener

Details Knife sharpener Knife sharpener

1998-04-02

2000-03-21

Hyder, Philip S.

Tools and hardware

Other tools and implements

Abrading

D8 93, D8 94, 0805

Patent

active

D04217063

REFERENCES:
patent: D153706 (1949-05-01), Lathom
patent: D169530 (1953-05-01), Case
patent: D170534 (1953-10-01), Johnson et al.
patent: D389716 (1998-01-01), Cohen et al.
patent: 2988933 (1961-06-01), Buck
patent: 4494339 (1985-01-01), Pittaway
patent: 4495696 (1985-01-01), Fethke et al.
patent: 4558540 (1985-12-01), Collins

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