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C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L89/00—Compositions of proteins; Compositions of derivatives thereof
C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
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FR463596D1913-10-141913-10-14Procédé de fabrication de matières semblables à la corne ou au cuir, au moyen de cuir ou de déchets de cuir
ExpiredFR463596A
(fr)