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2012 OFC, FOE, Japan CATV, ECOC, CABLE-TEC EXPO
2011 OFC, FOE, Japan CATV, ECOC, CABLE-TEC EXPO
2010 OFC, FOE, Japan CATV, ECOC
2009 OFC, FOE, Japan CATV, ECOC
2008 OFC, FOE, Japan CATV, ECOC