9 Scientific, other than medical, optical, photographic, measuring, signaling, checking and teaching apparatus and instruments, namely, electronic data loggers, computerized electronic data processors, computers for educational and scientific experimentation, ph indicators in the nature of pH meters, meters for measuring oxidation, electric conductivity meters, refractometers, analog and digital multimeters, luminoflux meters, hygrometers, anemometers, sonometers, tachometers, accelerometers, flowmeters, colorimeters, thermistors, thyristors, varistors, microscopes, polarizing microscopes, stereomicroscopes, LED microscopes, camera, cameras for microscopes, digital viewers for microscopes, webcams, microscope illuminating devices, magnifying glasses; monoculars, periscopes, loudspeakers, microphones, vibration sensors, voltmeters, ammeters, scales, polarimeters, electrodes, sound amplifiers, sensors, probes and transmitters for determining position, velocity, acceleration and temperature, adapters for connecting photocells to data collection units, electronic droppers in the nature of machines for counting drops of chemical substances in scientific experimentations, bioreactors for cell culturing, laboratory equipment and supplies, namely, syringes, thermometers, glassware for scientific experiments, namely flasks, beakers, and burettes, test tubes, pipettes, micropipettes, measuring cups, lids for laboratory glassware, stands and racks for laboratory glassware, petri dishes, laboratory filters, magnetic agitators for laboratory use, laboratory centrifuges, laboratory funnels, laboratory spatulas, laboratory vacuum trunks, laboratory filtration cones, laboratory ovens, autoclaves for laboratory use, clamps for burettes, barrels and casks for laboratory use, pumps for pipettes for laboratory use, wash bottles for laboratory use, Prisms for scientific purposes, fiber optics, laser diodes, optical lenses; Apparatus for processing, analyzing, reproducing and storing images and photographs, namely, electronic data loggers for laboratory use and for use in the fields of education and scientific experimentation; Apparatus and instruments for switching, transforming, regulating or controlling electricity, namely, electrical connection boxes, electric cables, electric resistors, diodes, photodiodes, laser diodes, condensers, solar cells, chocking coils, power switches, voltage regulators, transistors, photo resistors, electronic buzzers, potentiometers, electric relays, resistance boxes, electronic circuit cards, conductivity cells, thermocouples; Equipment for data processing, namely, data loggers; Detectors, namely, smoke detectors, motion detectors; Downloadable electronic publications, namely, books, pamphlets and booklets in the fields of education, science and scientific experimentation