Audio-Frequency, Video-Frequency, Carrier-Frequency, Noise and Radio-Frequency Signal Generators; Sound-Level Meters; Sound Analyzers; Meters Including Voltmeters, Ammeters, Wattmeters and Differential Voltmeters; Electronbeam or Cathode-Ray Devices and Indicators; Electro-Optical Indicators; Electrical Signal-Level Indicators; Sound and Radio Detecting Apparatus; and Stroboscopic Devices

'ammet':26 'analyz':22 'apparatus':52 'audio':2 'audio-frequ':1 'carrier':8 'carrier-frequ':7 'cathod':34 'cathode-ray':33 'detect':51 'devic':36,55 'differenti':29 'electr':43 'electro':40 'electro-opt':39 'electronbeam':31 'frequenc':3,6,9,14 'generat':16 'includ':24 'indic':38,42,47 'level':19,46 'meter':20,23 'nois':10 'optic':41 'radio':13,50 'radio-frequ':12 'ray':35 'signal':15,45 'signal-level':44 'sound':18,21,48 'sound-level':17 'stroboscop':54 'video':5 'video-frequ':4 'voltmet':25,30 'wattmet':27

H. H. SCOTT

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