编辑同志: 贵刊在1992年第1期上刊登了谢淑湘同志的文章《介绍<世界专利索引>收录两种<公开>刊物的方法》,读后对这两种《公开》刊物在《世界专利索引》中的特殊处理方法有了详尽的了解。然而,文章中的有关《世界专利索引》“收录世界上27个国家”的专利文献的说法是不够准确的。自1987年起,《世界专利索引》已收录33个单位所公布的专利文献, Editing Comrade: In your first issue of 1992, your magazine published Comrade Xie Shuxiang’s article, “Introducing the World Patent Index,” a collection of two “public” publications. After reading these two “public” publications, Index “in the special treatment method has a detailed understanding. However, the article’s article on the ”World Patent Index“ ”contains 27 countries in the world," the patent literature is not accurate enough. Since 1987, the World Patent Index has included patent documents published by 33 units,