Zhang Shiqing, a farmer from Jiyang in Fujian Province, knew his crop of Xian Cao Gan (a Chinese herb) was valuable, so he knew he had to protect it from copycats. He registered his "Jianji" series...
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Zhang Shiqing, a farmer from Jiyang in Fujian Province, knew his crop of Xian Cao Gan (a Chinese herb) was valuable, so he knew he had to protect it from copycats. He registered his "Jianji" series...