Measurement apparatus and equipment including those for scientific, nautical, topographic, meteorologic, industrial and laboratory purposes, namely, electronic apparatus for the electropysiological measurement and testing of cells; thermometers, not for medical purposes, barometers, ammeters, voltmeters, hygrometers, testing apparatus not for medical purposes in the nature of probes for testing integrated circuits, telescopes, periscopes, directional compasses, speed indicators, laboratory ap...