作者: Arnold I. Vodovozov , David Sverdlik
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摘要: A ball rebound apparatus includes a part-cylindrical panel with attachment flanges at the lateral extremities thereof and parallel end walls closing axial thereof. The is mountable on between two adjustable, triangular support frames, each having base rail connectable to ground or other underlying surface, mounting which attached various locations for changing inclination of rail. reversible so that it can be mounted either its concave surface convex disposed forwardly. It also cylindrical axis in vertical plane, secured frame, horizontal frame.