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D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
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Textile Engineering
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FR560512D1922-12-291922-12-29Perfectionnements aux machines servant à nettoyer le coton, les déchets de coton etles matières a nalogues
ExpiredFR560512A
(fr)