MICROVIB

Apparatus for recording and reproduction of sound, images or data; Apparatus for the recording, transmission and reproduction of sound and images; Cables and fibres for the transmission of sounds and images; Cables for optical signal transmission; Central processing units for processing information, data, sound or images; Data cables; Data compression software; Data processors; Fiber optic cables; Fiber optic connectors; Fiber optic light and image conduits; Fiber optic instruments, namely, for downhole survey; Fiber optics; Oil and gas well downhole survey and measurement equipment; Optical fiber cables; Optical fibers; Protective sheaths for fiber optical cables; Recording and playing devices for sound and image carriers; Seismological instruments; Surveying instruments