Portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes, namely, a gas chromatography detection system; electronic device for tracking and locating individuals using dead reckoning devices, namely, gyroscopes, magnetic compass, altimeter, and accelerometers with software, and digital signal processor connectable to a global positioning system (GPS) receiver

'acceleromet':47 'altimet':45 'biolog':18 'chemic':16 'chromatographi':27 'compass':44 'connect':54 'dead':38 'detect':2,13,28 'detector':11 'devic':31,40 'digit':51 'electron':30 'gas':26 'global':57 'gps':60 'gyroscop':42 'identif':4 'identifi':15 'individu':36 'instrument':5 'light':7,10 'locat':35 'magnet':43 'medic':22 'name':24,41 'portabl':1 'posit':58 'processor':53 'purpos':23 'receiv':61 'reckon':39 'signal':52 'softwar':49 'sourc':8 'substanc':19 'system':29,59 'track':33 'use':6,37

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