Downloadable electronic publications in the nature of books, manuals, magazines and catalogues in the field of gemstones, jewelry, and consumer electronics

NAVIGATIONAL AIDS-NAMELY, LORAN RECEIVERS, REMOTE DISPLAY UNITS FOR LORAN RECEIVERS, ELECTRONIC DIRECTION FINDERS, ELECTRONIC DEPTH MEASURING AND RECORDING DEVICES AND FISH FINDERS, RADIOTELEPHONES AND PARTS THEREOF AND CITIZENS BAND RADIO TRANSMITTERS AND RECEIVERS