Scientific, nautical, surveying photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments, in particular encoders, optical encoders, magnetic encoders, incremental encoders, sine encoders, absolute encoders, end-shaft encoders, shaft encoders, hollow shaft encoders, cone shaft rotary encoders, single-turn encoders, multi-turn encoders, encoders with interface, fibre-optic light guides, encoders with high...