Electrically-powered eraser

Details Electrically-powered eraser Electrically-powered eraser

1987-07-27

1990-10-30

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Eraser

D19 65

Patent

active

D03117570

REFERENCES:
patent: D180101 (1657-04-01), Robinson
patent: D184831 (1959-04-01), Palma
patent: D205748 (1966-09-01), Hall
patent: D207147 (1967-03-01), Daher
patent: D217705 (1970-06-01), Niederwaugers
patent: D223969 (1972-06-01), Collura
patent: D304543 (1989-11-01), Somers et al.
patent: 3286558 (1966-11-01), Hufnagel
Charles Bruning Company, see Cordless Electric Eraser, right side of page.

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