Apparatus, namely, scanners used for collecting data and measuring, recording, observing and capturing images of three dimensional or two dimensional objects; data processing equipment, namely, scanners, computer peripherals and computers; data processing equipment, namely, computer software and firmware for recording, measuring, analyzing, and processing data; clinometers; computer programs and software for recording, measuring, analyzing, and processing data; lasers designed for use in measuring systems and not for medical purposes; water level indicators; measuring instruments, namely, a scanner and an absolute positioning system comprised of a laser tracking system and inertial measurement unit used to track the position of an object; gradient indicators; indicators for wear measurement; air analysis apparatus; alidades; anemometers; precision balances; electrical cables; cases designed for photographic apparatus and instruments; apparatus for in-situ measurement of mill liners, namely, scanners; computers for measuring wear, thickness, weight and condition of the surface of mill liners; computers and software for use in the modeling of mill liners; computers and software for use in the visualization and statistical analysis of liner condition