CEC

Measuring and Scientific Appliances-Namely, [Mass Spectrometers, Leak Detectors, Apparatus Providing Digitized Indications of Peak Voltages, Chromatographs, Torsiographs,] Recording Oscillographs, Electromechanical Transducers Including Pressure Transducers, Accelerometers, and Galvanometers, [A.C. Voltmeters,] Data Amplifiers [Test Oscillators, and Noise-Level Meters]