Chpolianski, A.M. Gorlov", Unidirecional reaction turbine operable under reversible fluid from flow, United States Patent 5,451,138, Sept 19, 1995.
Chpolianski, A.M. Gorlov", Unidirecional reaction turbine operable under reversible fluid from flow, United States Patent 5,451,138, Sept 19, 1995.