Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking supervision, life-saving and teaching apparatus and instruments, namely, spectrometers, underwater enclosures for cameras, tripods, cameras, optical cables, scales, measuring tapes, optical signaling cables, life vests; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electric and electronic apparatus u...