Sales and advertising equipment – Signs or display forms – Card type
Patent
1989-09-14
1993-02-16
Burke, Wallace R.
Sales and advertising equipment
Signs or display forms
Card type
Patent
active
D03333213
REFERENCES:
patent: 716464 (1902-12-01), Nelson
patent: 2787852 (1957-04-01), Youngren
patent: 2811363 (1957-10-01), McDaniel
patent: 3191328 (1965-06-01), Lohnes
patent: 3849234 (1974-11-01), Pottkotter
patent: 4622768 (1986-11-01), Moreau
Barros Ronald P.
Jackson James
Burke Wallace R.
Jackson Marcus
Marrs Roger A.
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