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Electrochemical color filter
US 2,632,045 A
Filed
: 08/31/1948
Issued
: 03/17/1953
Est. Priority Date
: 08/31/1948
Status: Expired due to Term
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Current Assignee
George C. Sziklai
Original Assignee
George C. Sziklai
Inventors
Sziklai, George C.
Application Number
US03/046,945
Time in Patent Office
1,659 Days
Field of Search
US Class Current
348/817
CPC Class Codes
G02B 5/24
Liquid filters G02B5/23 tak...
G02F 1/176
using acid- based indicators
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