Automatic liquid-level control machines and instruments; Electrical inductors; Flowmeters; Leak detecting device for water supplied home appliances consisting of water sensor, control unit with audible alarm and water valves; Rods for water diviners; Surveying machines and instruments; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Transponders; Water level indica...