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US4688777A Pair of stacked springs for a railway car 失效
一对堆叠的弹簧铁路车

Pair of stacked springs for a railway car
摘要:
A pair of stacked springs are connected between a main railway car body and a truck. At least one of the springs include an elastomeric member having a center opening therein. Restricting members are provided to limit the lateral movement of one of the springs while permitting free vertical movements of both of the springs.
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