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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.
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