9 Scientific measuring instruments, namely conductivity meters; nautical apparatus and instruments, namely, water meters; surveying apparatus and instruments, namely, surveyors' levels; photographic apparatus and instruments, namely, cameras; cinematographic apparatus and instruments, namely, cameras; optical character recognition apparatus; weighing equipment, namely, scales and balances; instruments for measuring length; signaling apparatus and instruments, namely, signaling buoys; checking apparatus for checking flight parameters; life-saving apparatus and instruments, namely, life jackets; teaching apparatus and instruments, namely, medical teaching mannequins; electrical conductors; electric current switches; electric transformers; electric accumulators; Electric oxygen regulators; electrical controllers; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers; blank cassettes and blank compact discs; automatic vending machines; cash registers; calculating machines, namely, calculating scales; data processing equipment and computers; fire-extinguishing apparatus; telecommunication cables; portable media players and global positioning systems