9 navigational avionics; namely, those incorporating computers or data processors; magnetic storage and recording devices; namely, magnetic tapes, disks, processors when prgrammed, databases pertaining to navigational avionics, and computer programs for use in evaluation, filtering, and manipulation of navigation avionics data; computers; apparatus for recording, transmitting or reproduction of sound or images; namely, magnetic tapes, disks, radio transmitters and receivers, and head-up and head-down displays; guidance systems; namely, autopilots and head-up and head-down displays; warning devices; namely, lights, bells, and buzzers; apparatus for storing, displaying or recording maps in digital form; namely, magnetic tapes, disks, processors when programmed, databases pertaining to navigational avionics, computer prgrams for use in evaluation, filtering and manipulation of navigational avionics data, computers, and head-up and head-down displays; measuring, checking, displaying and recording apparatus; namely, odometers, speedometers, position monitors, head-up and head down displays, magnetic tapes, disks, computers, and processors when programmed; automatic steering apparatus; namely, autopilots; weapon aiming systems; target rangers; parts and fittings for all the aforesaid goods