国产精品永久免费视频- 无码精品A∨在线观看中文 -热re99久久精品国产99热-国产成人久久777777

Home / China / Society

Chinese farmer granted patent for submarine

(chinadaily.com.cn) Updated: 2016-04-28 14:34

 

Chinese farmer granted patent for submarine

Zhang Shengwu demonstrates how to operate his homemade submarine in Hanshan county, east China's Anhui Province, April 27, 2016. [Photo/IC] [Photo/IC]

Zhang Shengwu, a farmer from east China's Anhui province, was recently granted a patent from the State Intellectual Property Office, for a new submarine he built at home. Zhang, 51, who is also successful in the construction materials business, got interested in inventing things after watching a TV show about inventions years ago.

Previous Page 1 2 3 4 5 6 Next Page

Tags
Most Popular
...