Sales and advertising equipment – Signs or display forms
Patent
1981-05-14
1983-03-22
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
D2003
Patent
active
D02683504
REFERENCES:
patent: D258829 (1981-04-01), Silverman
patent: 2019107 (1935-10-01), Weber
APCO Graphics, Inc.
Kemper Catherine E.
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