Calculators; Galvanometers; Scales; Smartglasses; Baby scales; Bags adapted for laptops; Calculating machines; Chronographs for use as specialized time recording apparatuses; Computer mouse; Covers for computer keyboards; Data cables; Electronic black boxes for recording data; Electronic card readers; Graduated rulers; Marking buoys; Measuring cups; Measuring rulers; Mouse mats; Mouse pads; Phototelegraphy apparatus; Protective films adapted for computer screens; Punched card machines for off...