Calculating machines; Calculating scales; Calculators; Calculators and calculating machines; Microscope condensers; Microscope objectives; Mouse pads; Tablet computer; Tablet computers; Covers for tablet computers; 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; PC tablet mounts; PC tablet stabilizers; Pocket calculators; Radio receivers and transmitters for monitoring and controlling light emitting diodes in a network of street lights and for processing emergency signals transmitted to individual street lights; Rotating lights; Stands adapted for tablet computers; Traffic-light apparatus
Electrical and Scientific Apparatus