1. patent name: water gravity energy turbine, patent type: utility model patent inventor: strong application number: CN20 1320405244.9 application date: 20 130624 publication number: CN203809 194U publication date: 20.
2. Patent name: hydraulic gravity turbine, patent type: utility model patent inventor: Zhao Yuguang ApplicationNo.: CN200520037792.6 Application date: 2005 1228 PublicationNo.: CN2858988Y Publication date: 2007017.