Cable connectors; Cable jump leads; Cable locators; Cable modems; Cable television converters; Cable television transmitters; Calculating machines; Calculating scales; Calculators; Calculators and calculating machines; Mouse pads; Smart watches; Electronic calculators; 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; Pocket calculators; Radio...