Electrostatic voltmeters; instrumentation for locating static charged and measuring ionizer performance, namely, electrostatic fieldmeters; coulomb meters for the purpose of measuring quantities of electrical charge on an object or in a circuit; resistivity meters for the purpose of measuring electrical resistance on a surface or through the material being tested; emergency alert system comprised of hardware and software for providing emergency information to the public; and CATV electrical switches and electronic controls for use in broadcasting

'alert':52 'broadcast':76 'catv':67 'charg':7,25 'circuit':32 'compris':54 'control':72 'coulomb':15 'electr':24,40,68 'electron':71 'electrostat':1,13 'emerg':51,61 'fieldmet':14 'hardwar':56 'inform':62 'instrument':3 'ioniz':10 'locat':5 'materi':48 'measur':9,21,39 'meter':16,34 'name':12 'object':28 'perform':11 'provid':60 'public':65 'purpos':19,37 'quantiti':22 'resist':33,41 'softwar':58 'static':6 'surfac':44 'switch':69 'system':53 'test':50 'use':74 'voltmet':2

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