having bell-shaped or bar-shaped magnets, e.g. for cycle lighting (with homopolar co-operation H02K21/36)

Full Title

Synchronous motors having permanent magnets; Synchronous generators having permanent magnets > with rotating armatures and stationary magnets > with armatures rotating within the magnets > having bell-shaped or bar-shaped magnets, e.g. for cycle lighting (with homopolar co-operation H02K21/36)