OPTICAL INSTRUMENTS-NAMELY, [ OPTICAL LENSES AND LENS ARRAYS, ] PRISMS, [ GUNSIGHTS, BOMB SIGHTS, RANGE FINDERS, PERISCOPES, ] GUNFIRE CONTROL APPARATUS, OPTICAL TOOLING SYSTEMS FOR AIRCRAFT, OPTICAL ALIGNMENT SYSTEMS FOR POWER GENERATORS, OPTICAL TOOLING SYSTEMS FOR AUTOMATIC MACHINERY AND MACHINE TOOLS, [ INFRARED INSTRUMENTS, TELEPHOTOSCOPES, TELEVISION OPTICS AND SCREENS; ] ALSO, OTHER INSTRUMENTS FOR OPTICAL, CHEMICAL, PHYSICAL, MEDICAL AND INDUSTRIAL LABORATORIES, INCLUDING [ ELECTRONIC RECORDERS AND AMPLIFIERS, ELECTRON MICROSCOPES, PHOTOMETERS, FLUOROMETERS, ULTRA-VIOLET, VISIBLE AND INFRARED MONOCHROMATORS, SPECTROMETERS AND ] SPECTROPHOTOMETERS [ , THERMOCOUPLES, NARROW BAND INTERFERENCE FILTERS, AND SPHYGMOGRAPHS ]

'aircraft':24 'align':26 'also':47 'amplifi':62 'apparatus':19 'array':9 'automat':35 'band':79 'bomb':12 'chemic':52 'control':18 'electron':59,63 'filter':81 'finder':15 'fluoromet':66 'generat':30 'gunfir':17 'gunsight':11 'includ':58 'industri':56 'infrar':40,72 'instrument':3,41,49 'instruments-nam':2 'interfer':80 'laboratori':57 'len':8 'lens':6 'machin':38 'machineri':36 'medic':54 'microscop':64 'monochrom':73 'name':4 'narrow':78 'optic':1,5,20,25,31,44,51 'periscop':16 'photomet':65 'physic':53 'power':29 'prism':10 'rang':14 'record':60 'screen':46 'sight':13 'spectromet':74 'spectrophotomet':76 'sphygmograph':83 'system':22,27,33 'telephotoscop':42 'televis':43 'thermocoupl':77 'tool':21,32,39 'ultra':68 'ultra-violet':67 'violet':69 'visibl':70

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