Avalanche airbags [ ; avalanche victim detectors comprising transceivers for use in locating victims caught in avalanches; protective helmets ]

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling, checking, life saving and teaching apparatus and instruments, namely, instruments and apparatus for controlling, monitoring, analyzing avalanches; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, apparatus and instruments for conveying, distributing, transforming, storing, regulating, controlling, measuring, mon...