MATERIAL TESTING AND REGULATING APPLIANCES AND INSTRUMENTS NAMELY OPTICAL FIBER TESTING AND REGULATING APPLIANCES AND INSTRUMENTS USED IN TELECOMMUNICATION, NETWORKS AND IN FIBER OPTIC NETWORKS; OPTICAL SPECTRUM ANALYZERS AND SPECTRUM ANALYZERS FOR FIBER-OPTIC NETWORKS, WAVELENGTH-DIVISION OPTICAL MULTIPLEXERS AND DEMULTIPLEXERS; OPTICAL SPECTRUM ANALYZERS AND SPECTRUM ANALYZERS FOR FIBER-OPTIC NETWORKS; OPTICAL REFLECTOMETERS AND POLARIMETERS MODAL DISTORTION IN A LIGHT BEAM MEASURING APPLIANCES; MULTI-WAVELENGTH LASER SOURCE APPLIANCES AND INSTRUMENTS

'analyz':28,31,46,49 'applianc':5,14,66,72 'beam':64 'demultiplex':43 'distort':60 'divis':39 'fiber':10,23,34,52 'fiber-opt':33,51 'instrument':7,16,74 'laser':70 'light':63 'materi':1 'measur':65 'modal':59 'multi':68 'multi-wavelength':67 'multiplex':41 'name':8 'network':20,25,36,54 'optic':9,24,26,35,40,44,53,55 'polarimet':58 'reflectomet':56 'regul':4,13 'sourc':71 'spectrum':27,30,45,48 'telecommun':19 'test':2,11 'use':17 'wavelength':38,69 'wavelength-divis':37

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