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Coates International, Ltd. develops Coates Spherical Rotary Valve system technology which is adaptable for use in piston-driven internal combustion engines of many types. The Company's CSRV system technology provides meaningful fuel savings when compared with internal combustion engines. In addition, CSRV Engines produce only low levels of harmful emissions while in operation. Engines operating on the CSRV system technology can be powered by a wide selection of fuels.