Electric eraser

Details Electric eraser Electric eraser

1989-04-10

1991-10-15

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Eraser

D 8 62, D19 35, D19 65

Patent

active

D03208117

REFERENCES:
patent: D205748 (1966-09-01), Hall
patent: D212884 (1968-12-01), Disko
patent: D228615 (1973-10-01), Hall
patent: D286548 (1986-11-01), Hsieh
patent: D303271 (1989-09-01), Lord
patent: D311757 (1990-10-01), Crutchfield
patent: 2128524 (1938-08-01), Daviau
Visual Systems Co. Inc. .COPYRGT.1988, see p. 167, Mars #52700 bottom center.

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