An electrophoretic display medium includes at least one set of colored particles in a dielectric fluid, wherein the display medium has an electrical conductivity of about 10.sup.-11 to about 10.sup.-15 S/m. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.

 
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> Visual indicator chronograph and the use of the same

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