Photographic, cinematographic, optical, weighing, measuring, signalling, checking and supervision apparatus and instruments, namely, cameras, eyeglasses, scales and compasses, scientific and technical apparatus in the nature of optical mirrors, surveying machines and instruments, photographic projectors and cameras, cinematographic cameras and projectors, weighing machines, instruments for measuring length and distance, rotating lights for use in signaling, signaling buoys, and microscopes; a...