首页>
外国专利>
Resonance relay or - transmission with an arbitrary number of oscillation springs and a in any desired number of positions adjustable switch shaft, as well as with one of each of the intended oscillation springs by means of a respective hammer influenceable drive device
Resonance relay or - transmission with an arbitrary number of oscillation springs and a in any desired number of positions adjustable switch shaft, as well as with one of each of the intended oscillation springs by means of a respective hammer influenceable drive device