Sales and advertising equipment – Signs or display forms
Patent
1988-06-30
1990-11-13
Burke, Wallace R.
Sales and advertising equipment
Signs or display forms
Patent
active
D03120970
REFERENCES:
patent: 2712809 (1955-07-01), Clarke
patent: 3208173 (1965-09-01), Shank
patent: 3231994 (1966-02-01), Cyrus
patent: 3234677 (1966-02-01), McDaniel et al.
patent: 4279105 (1981-07-01), Cameron
Burke Wallace R.
Jackson Marcus
Nydegger Neil K.
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