专利国别 | US | 专利名称 | SULFONATED XANTHENE DERIVATIVES | 专利号 | WO9915517 (A1) | 专利链接 | https://worldwide.espacenet.com/publicationDetails/biblio?DB=EPODOC&II=0&ND=3&adjacent=true&locale=en_EP&FT=D&date=19990401&CC=WO&NR=9915517A1&KC=A1 | 标准国别 | US | 标准类别 | WO | 标准名称 | SULFONATED XANTHENE DERIVATIVES | 标准号 | WO9915517 (A1) | 标准年份 | 1994 |
https://worldwide.espacenet.com/ ... &NR=9915517A1&KC=A1 |