| http://www.w3.org/ns/prov#value | - This advantage is notably due to the fact that in the cell of the invention, the control electrodes 5 and the conducting tracks 7 can be manufactured simultaneously by a single chemical etching of a layer of indium oxide deposited on the surface of the front plate 2, whereas in the conventional cell, the conducting tracks corresponding to these tracks 7 and the control electrodes have to be manufa
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