[Class : 9] Voltage Surge Protection Devices For Energy Technology; Surge Arresters; Lightning Arresters; Protective Spark Gap Modules; Voltage Surge Arresters For Inserting Into Busbar Connector Panels Of A Meter Panel And For Installation Directly On The Busbar System; Voltage Surge Arresters For Photovoltaic Generator Circuits; Lightning Arresters For Direct, Adapter Free Installation On The Rails Of A Switching Station; Indicating Devices Displaying The Operating Method Of Surge Protection Devices Connected To Them; Photovoltaic Voltage Surge Arresters With Short Circuit Device; Voltage Surge Arresters With Integral Interference Suppression Filter; Voltage Surge Arresters For Installation Directly In Protected Contact Sockets.[Class : 37] Electrical Installation, Installation And Assembly Of Lightning Protection Installations And Earthing Installations; Repair Or Maintenance Of Electrical Engineering Products.[Class : 42] Research And Development For Others With Regard To New Products; Technological Consultancy And Preparation Of Reports Relating To Technological Research; Industrial Design; Services Provided By A High Voltage Testing Laboratory And A Test Laboratory For Testing Lightning Protection Equipment, Lightning Protection Components And Voltage Surge Arresters By Simulating Lightning Currents Or Lightning Impulse Currents; Material Testing; Quality Control.