Hand-held motor-driven eraser

Details Hand-held motor-driven eraser Hand-held motor-driven eraser

1989-05-09

1991-09-24

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Eraser

D19 35, D19 65, D 8 62

Patent

active

D03202305

REFERENCES:
patent: D184831 (1959-04-01), Palma, Jr.
patent: D185279 (1959-05-01), Freedman
patent: D219123 (1970-11-01), Eckel
patent: D223969 (1972-06-01), Collura
patent: D263952 (1982-04-01), Yoshizawa
patent: D286548 (1986-11-01), Hsieh
patent: D303271 (1989-09-01), Lord
patent: D304543 (1989-11-01), Sommers et al.
patent: D308809 (1990-06-01), Kawabata
patent: 2128524 (1938-08-01), Daviau
Visual Systems Company, Inc., .COPYRGT.1988, See p. 166, lower right, #1011600 Electric Eraser.

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