Pressure indicators and altimeters; weighing instruments; temperature and pressure measuring instruments, namely, pressure transducers, differential pressure sensors, aneroid pressure sensors and sudden pressure relays, temperature-motion transducers, temperature-force transducers, pressure-motion transducers, force-pressure transducers, motion-motion transducers, force-force transducers; surveying instruments; computer software for layout and design of flexible metal bellows, expansion joint...