Educational drawing aid

Details Educational drawing aid Educational drawing aid

1996-03-12

1998-01-06

Thompson, Martie

Office supplies; artists and teachers materials

Teaching material

D19 52, D19 35, D21 59, 1907

Patent

active

D03888266

REFERENCES:
patent: D356335 (1995-03-01), Mak
patent: D356336 (1995-03-01), Mak
patent: D356824 (1995-03-01), Mak
patent: D359984 (1995-07-01), Mak
patent: D363511 (1995-10-01), Hui

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