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Breaking-News >> TodayHistory On January 1, 1994, China became a member of the Patent Cooperation Treaty (PCT).
31 years ago today, on January 1, 1994 (November 20, 1993) China officially became a member of the Patent Cooperation Treaty (PCT). News raw data sources → https://www.abtool.cn/today_detail/111c.html 17WorldNews[2025.09.17-21:53] 访问：82
※※相关信息专题※※ §History0101
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