Sales and advertising equipment – Signs or display forms
Patent
1978-09-13
1981-04-07
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
D2003
Patent
active
D02588293
REFERENCES:
patent: D234166 (1975-01-01), Silverman
patent: D251275 (1979-03-01), Yoshida
patent: 391765 (1888-10-01), Terrill
patent: 746540 (1903-12-01), Von Der Luhe et al.
patent: 3936967 (1976-02-01), Davis
Kemper Catherine E.
Lempio Paul S.
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