Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking and supervision, life-saving and teaching apparatus and instruments, namely, microscopes, compasses, protractors, magnifying glasses, telescopes, graduated rulers, emergency flares, optical lenses, scales, signaling buoys, life-saving rafts; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electric accu...