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中国技术进出口公司及香港永新公司将于1990年11月举办第二届国际专利与新技术设备展览会。硅可控开关专利技术被邀参展。届时,将有许多国家和地区参加展览。
China National Technical Import and Export Corporation and Hong Kong Yongxin Company will hold the second international patent and new technology equipment exhibition in November 1990. Silicon controlled silicon switch patented technology was invited to participate. By then, many countries and regions will participate in the exhibition.