Straight edge graduated rulers; Laptop computer cooling pads; Computer heat sinks; Portable power chargers; Humanoid robots with artificial intelligence for preparing drinks; Smart rings; Computer mouse; Tape recorders; Solar power towers; Notebook computers; Video cameras; Baby scales; Accumulators and batteries; Solar panels for production of electricity; Acid hydrometers; Flue gas analyzers; Electronic sheet music, downloadable; Radar antennas; Electric resistances; Solar-powered battery c...