NPT

Indicator lights; Measurement standard devices for nanometrology, namely, measuring tools having a pattern in the micrometer or nanometer ranges; Measuring rulers; Micrometers; Precision balances; Protractors; Scales; Surface roughness testing machines and instruments; Angle gauges; Automatic altitude indicators; Depth gauges; Lasers for measuring purposes; Length measuring gauges; Level indicators; Level measuring machines; Pocket calipers for measuring; Precision theodolites; Tool measuring instruments; Ultrasonic thickness gauges