Electronic apparatus used for detection and analysis of toxic or explosive gas as well as chemical pollutants in the atmosphere and for automatic control of air ventilation systems, the said apparatus being also equipped with sound and visual alarms

'air':26 'alarm':39 'also':33 'analysi':7 'apparatus':2,31 'atmospher':20 'automat':23 'chemic':16 'control':24 'detect':5 'electron':1 'equip':34 'explos':11 'gas':12 'pollut':17 'said':30 'sound':36 'system':28 'toxic':9 'use':3 'ventil':27 'visual':38 'well':14

VULCAIN

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