CPC Subgroup
F16F 1/37 of foam-like material , e.g. sponge rubber
Full Title
Springs (working with fluid F16F5/00, F16F9/00) > made of rubber or other material having high internal friction, > of foam-like material , e.g. sponge rubber
F16F 1/37 Springs (working with fluid F16F5/00, F16F9/00) > made of rubber or other material having high internal friction, > of foam-like material , e.g. sponge rubber