Drill bit sharpener

Details Drill bit sharpener Drill bit sharpener

1987-10-02

1990-07-31

Dunkins, Bruce W.

Tools and hardware

Other tools and implements

Abrading

Patent

active

D03095592

REFERENCES:
patent: D162593 (1951-03-01), Sykes
patent: 1044036 (1912-11-01), Fassett
Institutions Magazine, May 1960, p. 189, "Intedge" Knife Serrator.
Hardware Age, Jul. 1984, p. 22, "Gamn'" Chain Saw Sharpener.

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