9 Scientific-surveying, electric photographic, optical weighting, measuring, signaling, control apparatuses and instruments, namely, lasers, sensors, scales and cameras; apparatus for recording, transmission and reproduction of sound and images, namely, speakers, radios, receivers and transceivers; cables, namely, coaxial cables and electrical cables switches, namely, electric switches, and antennas; magnetic data carriers, namely, blank magnetic data carriers and pre-recorded magnetic data carriers featuring maps, agricultural data and agricultural machine information; computing machines and processing devices, namely, computers and computer programs for global positioning for use in harvesting, for use in machine serving management, links, namely, fusible links, electrical fuses, and tape measures