Sales and advertising equipment – Signs or display forms – Simulative
Patent
1982-11-22
1985-04-09
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
Simulative
D20 41
Patent
active
D02783550
REFERENCES:
patent: D77527 (1929-01-01), Brumbaugh
patent: D213607 (1969-03-01), Grady
patent: D225288 (1972-11-01), Dowsett
patent: D261281 (1981-10-01), McDonald
patent: 1384106 (1921-07-01), Taussig
patent: 2581762 (1952-01-01), Hesse
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