Electric goods, namely, grade crossing gate arms and grade crossing predictors, motion sensors, pulse modulated track circuits, phase shift overlays, and electric power supply apparatus to operate grade crossing control devices, namely, transformers, signal rectifiers, power transfer relays, radio control units for grade crossing control devices, dispatcher call decoders and railway electrical surge protectors

'apparatus':25 'arm':7 'call':48 'circuit':17 'control':30,40,45 'cross':5,10,29,44 'decod':49 'devic':31,46 'dispatch':47 'electr':1,22,52 'gate':6 'good':2 'grade':4,9,28,43 'modul':15 'motion':12 'name':3,32 'oper':27 'overlay':20 'phase':18 'power':23,36 'predictor':11 'protector':54 'puls':14 'radio':39 'railway':51 'rectifi':35 'relay':38 'sensor':13 'shift':19 'signal':34 'suppli':24 'surg':53 'track':16 'transfer':37 'transform':33 'unit':41

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