On September 29, 1915 (August 21, 1915), Chinese Writing Machine was patented. Chinese Writing Machine was patented. On September 29, 1915, the Chinese Writing Machine was patented by Shandong Leu-American students Qingxian. Before this, Qingxian filed his own invention Writing Machine Explanation to the United States Student Manager, please refer to the Department of Education and Commerce. The Chinese Writing Machine was patented by the Chinese Writing Machine, built by the Chinese Writing Machine, built by hand, and used a straight line, the Writing Machine was still clear, specifically in accordance with the temporary craftsmanship medal, granted the patent for five years, to encourage. The original form was about an A2 size plate of Hong Kong, filled with lead. The ordering of lead letters is as usual as