Gramophones; Screw-thread measuring machines and instruments; Sunglass cords; Road signs, luminous or mechanical; Grids for batteries; Electrical connections; Walkie-talkies; Tape recorders; Solar power towers; Notebook computers; Video cameras; Baby scales; Solar panels for production of electricity; Acid hydrometers; Flue gas analyzers; Vacuum tubes for radios; Radar antennas; Electric resistances; Solar-powered battery chargers; Table electrical boxes