Sign holder

Details Sign holder Sign holder

1991-09-30

1993-12-21

Burke, Wallace R.

Sales and advertising equipment

Signs or display forms

Post supported

Patent

active

D03425495

REFERENCES:
patent: 59656 (1921-11-01), Hudson
patent: 60887 (1922-04-01), Tuttle
patent: D328925 (1992-08-01), Levin
patent: 1741118 (1929-12-01), Rosenfeld et al.
patent: 2236888 (1941-04-01), Bishop
patent: 2590506 (1952-03-01), Carter
patent: 3783543 (1974-01-01), Hemgren
patent: 4217713 (1980-08-01), Greenberger
patent: 4329800 (1982-05-01), Shuman
patent: 4726132 (1988-02-01), Ernest
patent: 4729183 (1988-03-01), Tarter et al.
patent: 4776116 (1988-10-01), Shuman
patent: 4777750 (1988-10-01), Garfinkle
patent: 4793083 (1988-12-01), McDonald
patent: 4839974 (1989-06-01), Walter

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