Metal guard barriers for railway crossings

'barrier':3 'cross':6 'guard':2 'metal':1 'railway':5

Electronic signaling mechanism, namely, a train control system used in the railway industry for detecting and controlling trains, ground faults, broken rails, power failures, track switches and lights

'broken':21 'control':7,17 'detect':15 'electron':1 'failur':24 'fault':20 'ground':19 'industri':13 'light':28 'mechan':3 'name':4 'power':23 'rail':22 'railway':12 'signal':2 'switch':26 'system':8 'track':25 'train':6,18 'use':9

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