committee said in a statement, the bamboo professional committee has long been a comprehensive analysis of the United States No. 5543197 patent and other countries in the same family of patents in detail, and verified in the early nineties of last century,
the United States No. 5543197 Patent application is filed on February 18, 1994. Bamboo professional committee at the same time the corresponding patent search clearly shows: only the Chinese Patent Office November 22, 1989 authorized No. 88102689.1
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Statistics: Posted by qizhenapp — Wed Aug 16, 2017 1:38 am
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