Indicator board

Details Indicator board Indicator board

1992-06-01

1995-01-03

Burke, Wallace R.

Sales and advertising equipment

Signs or display forms

Program reminder or programmable indicator, e.g., t.v.,...

Patent

active

D03540855

REFERENCES:
patent: D27707 (1897-09-01), Schloer
patent: D134740 (1943-01-01), O'Sullivan
patent: D159510 (1950-08-01), Nelson
patent: D234834 (1975-04-01), Cleave
patent: D251275 (1979-03-01), Yoshida
patent: D318692 (1991-07-01), Hofman
patent: 1142777 (1915-06-01), Star
patent: 1592711 (1926-07-01), Acklin
Quartet Manufacturing Company 1990 p. 42 (Basic Staff Tracker) cited by Applicant.
Dyna-Dispo Message Centre 1992 (In and Out Board) cited by Applicant.

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