Full Title

Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic ( ; if including fluid springs F16F5/00, F16F13/00) > with springs made of a material having high internal friction, e.g. rubber > Units comprising several springs made of plastics or the like material (F16F1/40, take precedence) > the springs being of different materials, e.g. having different types of rubber