DIFF Subgroup Additional Only
C08J 2305/08 Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
Full Title
Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00 > Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof