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MULTICOLORED E.L. DISPLAYS USING EXTERNAL COLORED LIGHT SOURCES
US 3,448,334 A
Filed
: 09/30/1966
Issued
: 06/03/1969
Est. Priority Date
: 09/30/1966
Status: Expired due to Term
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Current Assignee
John S. Frost
Original Assignee
John S. Frost
Inventors
Frost, John S.
Application Number
US04/583,289
Time in Patent Office
977 Days
Field of Search
US Class Current
345/76
CPC Class Codes
H05B 33/00
Electroluminescent light so...
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