Rheostats; Computer switches; Cut-out switches; Electric circuit switches; Electric power distribution machines; Electric relays; Electric wire and cable; Electric wires and cables; Electrical sockets; Electrical switches; Electro-optic transducers; Feeler gauges; Light switches; Luminous pointers; Switch boxes; Wires, electric

'box':40 'cabl':20,24 'circuit':9 'comput':2 'cut':5 'cut-out':4 'distribut':13 'electr':8,11,15,17,21,25,27,42 'electro':30 'electro-opt':29 'feeler':33 'gaug':34 'light':35 'lumin':37 'machin':14 'optic':31 'pointer':38 'power':12 'relay':16 'rheostat':1 'socket':26 'switch':3,7,10,28,36,39 'transduc':32 'wire':18,22,41

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