Color selection guide

Details Color selection guide Color selection guide

1975-06-11

1977-03-22

Feifer, Melvin B.

Office supplies; artists and teachers materials

Teaching material

D1907

Patent

active

D02437635

REFERENCES:
patent: D238620 (1976-01-01), Dorr
patent: 2623304 (1952-12-01), Watson
patent: 3000113 (1961-09-01), Olson
patent: 3517448 (1970-06-01), Wallace
patent: 3559306 (1971-02-01), Winans

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