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PCE
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DIFF Subgroup
G09G 3/38

using electrochromic devices

Introduced: January 1990

Full Title

Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes > for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix > by control of light from an independent source > using electrochromic devices

No child classifications to compare. This is a leaf node in both IPC and CPC.