SCIENTIFIC, NAUTICAL, SURVEYING, PHOTOGRAPHIC, CINEMATOGRAPHIC, OPTICAL, WEIGHING, MEASURING, SIGNALING, CHECKING (SUPERVISION), LIFE-SAVING AND TEACHING APPARATUS AND INSTRUMENTS, NAMELY, INFRARED THERMOMETERS, THERMOMETERS FOR MEASURING THE TEMPERATURE OF LIQUIDS, SURFACES AND THE ENVIRONMENT; APPARATUS AND INSTRUMENTS FOR CONDUCTING, SWITCHING, TRANSFORMING, ACCUMULATING, REGULATING OR CONTROLLING ELECTRICITY, NAMELY, ADAPTERS, POWER ADAPTERS, ADAPTER PLUGS; APPARATUS FOR RECORDING, TRANSM...