Sales and advertising equipment – Signs or display forms – Card type
Patent
1980-11-06
1983-03-29
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
Card type
D2003
Patent
active
D02684241
REFERENCES:
patent: D263319 (1982-03-01), Shuman
patent: 852451 (1907-05-01), Requa
patent: 2608011 (1952-08-01), Hoeve et al.
patent: 3711975 (1973-01-01), Downing
patent: 4144664 (1979-03-01), DeKorte
Eastern Electrical Equipment Co., Inc.
Kemper Catherine E.
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