Knife sharpener

Details Knife sharpener Knife sharpener

1988-10-13

1991-08-06

Dunkins, Bruce W.

Tools and hardware

Other tools and implements

Abrading

D 8 91

Patent

active

D03187829

REFERENCES:
patent: D120817 (1940-05-01), Pollak
patent: D217084 (1970-04-01), Martin
patent: D266393 (1982-10-01), Mayer et al.
patent: D276884 (1984-12-01), Carter
patent: 1134359 (1915-04-01), Walker
patent: 2030161 (1936-02-01), von der Lippen
patent: 2565353 (1951-08-01), Chester
patent: 4550632 (1985-11-01), Inman

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