Earphones; Radios; Bags for cameras and photographic equipment; Cabinets for loudspeakers; Cases especially made for photographic apparatus and instruments; Electric door bells; Electric wires; Electronic collars to train animals; Measuring rulers; Optical apparatus and instruments, namely, optical ports for underwater photography, dome ports for underwater photography, wet diopters, adapter lenses for underwater photography; Radar apparatus; Radio sets; Surveying machines and instruments; Te...