Scientific, surveying, photographic, optical apparatus and instruments, namely, radar apparatus, altimeters, radiometers, satellites, telescopes, binoculars, magnifying lenses, microscopes; detecting devices and instruments for chemical constituents on parcels of agricultural land, namely, nitrogen concentration detectors; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, namely, blank magnetic tapes, blank floppy disks, blank compact discs, bla...