BEIJING, Nov. 8 (Xinhua) — The number of valid invention patents and trademarks in China has exceeded 4.8 million and 45.1 million, respectively, as of September, the National Intellectual Property A
Enjoy life, Inspiring work
Enjoy life, Inspiring work
BEIJING, Nov. 8 (Xinhua) — The number of valid invention patents and trademarks in China has exceeded 4.8 million and 45.1 million, respectively, as of September, the National Intellectual Property A