Sales and advertising equipment – Signs or display forms
Patent
1978-01-19
1980-09-09
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
D2003
Patent
active
D02568101
REFERENCES:
patent: D239474 (1976-04-01), DeKorte
patent: 2160544 (1939-05-01), Hector
patent: 2510331 (1950-06-01), Crosby
Kemper Catherine E.
Rosetta Leo A.
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