Automatically activated valves for controlling the flow of fluids; fire extinguishing water sprinkler heads; gauges, namely, level gauges and pressure gauges; water meters; fire alarms, control switches and water sprinkler nozzles, all used with fire protection systems

'activ':2 'alarm':25 'automat':1 'control':5,26 'extinguish':11 'fire':10,24,35 'flow':7 'fluid':9 'gaug':15,18,21 'head':14 'level':17 'meter':23 'name':16 'nozzl':31 'pressur':20 'protect':36 'sprinkler':13,30 'switch':27 'system':37 'use':33 'valv':3 'water':12,22,29

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