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d'Alessandro, Antonio and Beccherelli, Romeo and Umenton, Cesare and Asquini, Rita and Donisi, Domenico and De Sio, Luciano and Caputo, Roberto (2008) Electro-optical tunable filter and manufacturing process. WO2008075397 A2 ; US7925124 B2.
Beccherelli, Romeo (2002) Liquid crystal display panel. WO02073306 A1.