【20080104】求助专利2篇:感谢zhucan!
1US,5241059:Cyclodextrin derivatives
2
US,5831081:Process for the purification of water-soluble cyclodextrin derivatives 11111111111111111111 [url]http://www.91files.com/?P3SYNL4JYHCQOMH10CWK[/url] 22222222222222222 [url]http://www.91files.com/?CZQ1GHYBKQ2ZSE12RGFJ[/url]
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