CHEN, Qixing

China

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Total IP 1
Total IP Rank # 1,321,547
IP Activity Score 0/5.0    0
IP Activity Rank # 1,754,556

Patents

Trademarks

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Last Patent 2021 - Track using main-auxiliary type ...
First Patent 2021 - Track using main-auxiliary type ...

Latest Inventions, Goods, Services

2021 Invention Track using main-auxiliary type steel rails and up-and-down lap joint type joints to improve smoo...