9 Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking and supervising, life-saving and teaching apparatus and instruments, namely, acceleration sensors, accelerometers, altimeters, cameras, camera mounts and supports, camera cases, digital multimeters, directional compasses, distance measuring apparatus, dynamometers, electronic navigational and positioning apparatus and instruments, electronic speed controllers, emergency signal transmitters, goggles for sports, GPS data loggers for recording trips and classifying them into different accounts, GPS navigation devices, GPS tracking devices to be worn on the wrist, inclinometers, instruments for measuring length, odometers, protective carrying cases specially adapted for GPS apparatus, protective helmets for sports, spectacles and sunglasses, speed indicators, speedometers, tachometers, telemeters, time recording apparatus; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, battery cables, battery chargers, electric charging cables, electrical cells and batteries, rechargeable electric batteries, rechargers for electric accumulators; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers; data processing equipment and computers