Sales and advertising equipment – Signs or display forms – Billboard type
Patent
1983-10-24
1985-09-24
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
Billboard type
D20 41, D21201, D20 19
Patent
active
D02807440
REFERENCES:
patent: D199908 (1964-12-01), Seligson
patent: D216722 (1970-03-01), Ninnette
Signs of the Times-May 1981-p. 59-Selby Sign.
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