Sharpening tool

Details Sharpening tool Sharpening tool

1990-06-22

1992-05-12

Ansher, Bernard

Tools and hardware

Other tools and implements

Abrading

Patent

active

D03260445

REFERENCES:
patent: D281392 (1985-11-01), Hepworth
patent: 653947 (1900-07-01), Condon
patent: 2447327 (1948-08-01), Gerrits et al.
patent: 3648418 (1972-03-01), Churchich
patent: 3699729 (1972-10-01), Garvey et al.
patent: 3874126 (1975-04-01), Catlin et al.
patent: 4694618 (1987-09-01), Eberhart et al.

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