9 Electronic devices for locating, and placement of, underground utility pipes, cable or wires using radio frequency; Computer peripherals; Computer peripheral devices; Antennas; Signal processors; Computer application software for computers, namely, software for use in locating, and placing, underground utility pipes, cable or wires; Computer application software for use in locating, and placing, underground utility pipes, cable or wires; Computer application software for mobile phones, namely, software for locating, and placing, underground utility pipes, cable or wires; Computer application software for computers and mobile phones, namely, software for use in mapping geographical features